1 Second (1초) - Read Free Online

1 Second Chapter 370 - (S3) Ep. 99 - Everything in Its Place

1 Second Chapter 369 - (S3) Ep. 98 - Inevitable

1 Second Chapter 368 - (S3) Ep. 97 - Escape (2)

1 Second Chapter 367 - (S3) Ep. 96 - Escape (1)

1 Second Chapter 366 - (S3) Ep. 95 - Coincidentally (3)

1 Second Chapter 365 - (S3) Ep. 94 - Coincidentally (2)

1 Second Chapter 364 - (S3) Ep. 93 - Coincidentally (1)

1 Second Chapter 363 - (S3) Ep. 92 - Operation to Rescue the Capital (4)

1 Second Chapter 362 - (S3) Ep. 91 - Operation to Rescue the Capital (3)

1 Second Chapter 361 - (S3) Ep. 90 - Operation to Rescue the Capital (2)

1 Second Chapter 360 - (S3) Ep. 89 - Operation to Rescue the Capital (1)

1 Second Chapter 359 - (S3) Ep. 88 - The Lost Future

1 Second Chapter 358 - (S3) Ep. 87 - Genius (2)

1 Second Chapter 357 - (S3) Ep. 86 - Genius (1)

1 Second Chapter 356 - (S3) Ep. 85 - Prophecy (2)

1 Second Chapter 355 - (S3) Ep. 84 - Prophecy (1)

1 Second Chapter 354 - (S3) Ep. 83 - Priority (2)

1 Second Chapter 353 - (S3) Ep. 82 - Priority (1)

1 Second Chapter 352 - (S3) Ep. 81 - Conduit (2)

1 Second Chapter 351 - (S3) Ep. 80 - Conduit (1)

1 Second Chapter 350 - (S3) Ep. 79 - Please Understand Me

1 Second Chapter 349 - (S3) Ep. 78 - An Alternative Rescue Method

1 Second Chapter 348 - (S3) Ep. 77 - Overseas Assignment (3)

1 Second Chapter 347 - (S3) Ep. 76 - Overseas Assignment (2)

1 Second Chapter 346 - (S3) Ep. 75 - Overseas Assignment (1)

1 Second Chapter 345 - (S3) Ep. 74 - Berirk Volcano (4)

1 Second Chapter 344 - (S3) Ep. 73 - Berirk Volcano (3)

1 Second Chapter 343 - (S3) Ep. 72 - Berirk Volcano (2)

1 Second Chapter 342 - (S3) Ep. 71 - Berirk Volcano (1)

1 Second Chapter 341 - (S3) Ep. 70 - Aura of a Higher Calling (3)

1 Second Chapter 340 - (S3) Ep. 69 - Aura of a Higher Calling (2)

1 Second Chapter 339 - (S3) Ep. 68 - Aura of a Higher Calling (1)

1 Second Chapter 338 - (S3) Ep. 67 - Special Ability (5)

1 Second Chapter 337 - (S3) Ep. 66 - Special Ability (4)

1 Second Chapter 336 - (S3) Ep. 65 - Special Ability (3)

1 Second Chapter 335 - (S3) Ep. 64 - Special Ability (2)

1 Second Chapter 334 - (S3) Ep. 63 - Special Ability (1)

1 Second Chapter 333 - (S3) Ep. 62 - Promise

1 Second Chapter 332 - (S3) Ep. 61 - Escape Route (2)

1 Second Chapter 331 - (S3) Ep. 60 - Escape Route (1)

1 Second Chapter 330 - (S3) Ep. 59 - Ready for the Explosion (2)

1 Second Chapter 329 - (S3) Ep. 58 - Ready for the Explosion (1)

1 Second Chapter 328 - (S3) Ep. 57 - From the Sky (5)

1 Second Chapter 327 - (S3) Ep. 56 - From the Sky (4)

1 Second Chapter 326 - (S3) Ep. 55 - From the Sky (3)

1 Second Chapter 325 - (S3) Ep. 54 - From the Sky (2)

1 Second Chapter 324 - (S3) Ep. 53 - From the Sky (1)

1 Second Chapter 323 - (S3) Ep. 52 - His Scent (2)

1 Second Chapter 322 - (S3) Ep. 51 - His Scent (1)

1 Second Chapter 321 - (S3) Ep. 50 - Worn Right (2)

1 Second Chapter 320 - (S3) Ep. 49 - Worn Right (1)

1 Second Chapter 319 - (S3) Ep. 48 - Pushing the Limits (2)

1 Second Chapter 318 - (S3) Ep. 47 - Pushing the Limits (1)

1 Second Chapter 317 - (S3) Ep. 46 - Prep Work (2)

1 Second Chapter 316 - (S3) Ep. 45 - Prep Work (1)

1 Second Chapter 315 - (S3) Ep. 44 - Before the Storm (3)

1 Second Chapter 314 - (S3) Ep. 43 - Before the Storm (2)

1 Second Chapter 313 - (S3) Ep. 42 - Before the Storm (1)

1 Second Chapter 312 - (S3) Ep. 41 - Extreme Weather (3)

1 Second Chapter 311 - (S3) Ep. 40 - Extreme Weather (2)

1 Second Chapter 310 - (S3) Ep. 39 - Extreme Weather (1)

1 Second Chapter 309 - (S3) Ep. 38 - Sigwang Special Rescue Services Preliminary Tournament (8)

1 Second Chapter 308 - (S3) Ep. 37 - Sigwang Special Rescue Services Preliminary Tournament (7)

1 Second Chapter 307 - (S3) Ep. 36 - Sigwang Special Rescue Services Preliminary Tournament (6)

1 Second Chapter 306 - (S3) Ep. 35 - Sigwang Special Rescue Services Preliminary Tournament (5)

1 Second Chapter 305 - (S3) Ep. 34 - Sigwang Special Rescue Services Preliminary Tournament (4)

1 Second Chapter 304 - (S3) Ep. 33 - Sigwang Special Rescue Services Preliminary Tournament (3)

1 Second Chapter 303 - (S3) Ep. 32 - Sigwang Special Rescue Services Preliminary Tournament (2)

1 Second Chapter 302 - (S3) Ep. 31 - Sigwang Special Rescue Services Preliminary Tournament (1)

1 Second Chapter 301 - (S3) Ep. 30 - The Outcast (2)

1 Second Chapter 300 - (S3) Ep. 29 - The Outcast (1)

1 Second Chapter 299 - (S3) Ep. 28 - Running on Empty

1 Second Chapter 298 - (S3) Ep. 27 - Foolish

1 Second Chapter 297 - (S3) Ep. 26 - Reunion

1 Second Chapter 296 - (S3) Ep. 25 - Special List

1 Second Chapter 295 - (S3) Ep. 24 - Jakdo Wildfire (5)

1 Second Chapter 294 - (S3) Ep. 23 - Jakdo Wildfire (4)

1 Second Chapter 293 - (S3) Ep. 22 - Jakdo Wildfire (3)

1 Second Chapter 292 - (S3) Ep. 21 - Jakdo Wildfire (2)

1 Second Chapter 291 - (S3) Ep. 20 - Jakdo Wildfire (1)

1 Second Chapter 290 - (S3) Ep. 19 - Sigwang Joint Tournament (2)

1 Second Chapter 289 - (S3) Ep. 18 - Sigwang Joint Tournament (1)

1 Second Chapter 288 - (S3) Ep. 17 - Guardian of the Mountain (3)

1 Second Chapter 287 - (S3) Ep. 16 - Guardian of the Mountain (2)

1 Second Chapter 286 - (S3) Ep. 15 - Guardian of the Mountain (1)

1 Second Chapter 285 - (S3) Ep. 14 - Sigwang Special Rescue Services Platoon 3 (2)

1 Second Chapter 284 - (S3) Ep. 13 - Sigwang Special Rescue Services Platoon 3 (1)

1 Second Chapter 283 - (S3) Ep. 12 - Street Racing (2)

1 Second Chapter 282 - (S3) Ep. 11 - Street Racing (1)

1 Second Chapter 281 - (S3) Ep. 10 - Derailment (3)

1 Second Chapter 280 - (S3) Ep. 9 - Derailment (2)

1 Second Chapter 279 - (S3) Ep. 8 - Derailment (1)

1 Second Chapter 278 - (S3) Ep. 7 - Up Against the Independent Rescue Unit

1 Second Chapter 277 - (S3) Ep. 6 - What Yeongjin Values

1 Second Chapter 276 - (S3) Ep. 5 - In the Fog (2)

1 Second Chapter 275 - (S3) Ep. 4 - In the Fog (1)

1 Second Chapter 274 - (S3) Ep. 3 - Disillusionment

1 Second Chapter 273 - (S3) Ep. 2 - Yeongjin Kim Is Going on a Leave of Absence?

1 Second Chapter 272 - (S3) Ep. 1 - Opening Show (Season 3 Premiere)

1 Second Chapter 270 - (S2) Ep. 268 - Cleared and Closed (Season 2 Finale)

1 Second Chapter 269 - (S2) Ep. 267 - Open the Door

1 Second Chapter 268 - (S2) Ep. 266 - Whistle

1 Second Chapter 267 - (S2) Ep. 265 - Whistleblower (4)

1 Second Chapter 266 - (S2) Ep. 264 - Whistleblower (3)

1 Second Chapter 265 - (S2) Ep. 263 - Whistleblower (2)

1 Second Chapter 264 - (S2) Ep. 262 - Whistleblower (1)

1 Second Chapter 263 - (S2) Ep. 261 - The Day in Question (3)

1 Second Chapter 262 - (S2) Ep. 260 - The Day in Question (2)

1 Second Chapter 261 - (S2) Ep. 259 - The Day in Question (1)

1 Second Chapter 260 - (S2) Ep. 258 - The One Person

1 Second Chapter 259 - (S2) Ep. 257 - Do You Know Firefighter Jeongyul Song? (2)

1 Second Chapter 258 - (S2) Ep. 256 - Do You Know Firefighter Jeongyul Song? (1)

1 Second Chapter 257 - (S2) Ep. 255 - Within Reach (2)

1 Second Chapter 256 - (S2) Ep. 254 - Within Reach (1)

1 Second Chapter 255 - (S2) Ep. 253 - Dinner Bet

1 Second Chapter 254 - (S2) Ep. 252 - Workshop (3)

1 Second Chapter 253 - (S2) Ep. 251 - Workshop (2)

1 Second Chapter 252 - (S2) Ep. 250 - Workshop (1)

1 Second Chapter 251 - (S2) Ep. 249 - The Executioner

1 Second Chapter 250 - (S2) Ep. 248 - Succession (2)

1 Second Chapter 249 - (S2) Ep. 247 - Succession (1)

1 Second Chapter 248 - (S2) Ep. 246 - Nightmare Anew (3)

1 Second Chapter 247 - (S2) Ep. 245 - Nightmare Anew (2)

1 Second Chapter 246 - (S2) Ep. 244 - Nightmare Anew (1)

1 Second Chapter 245 - (S2) Ep. 243 - Mabongsan Tunnel

1 Second Chapter 244 - (S2) Ep. 242 - And That’s a Wrap

1 Second Chapter 243 - (S2) Ep. 241 - A Good Omen

1 Second Chapter 242 - (S2) Ep. 240 - Mutual Interest (2)

1 Second Chapter 241 - (S2) Ep. 239 - Mutual Interest (1)

1 Second Chapter 240 - (S2) Ep. 238 - The Best of the Best

1 Second Chapter 239 - (S2) Ep. 237 - A Bad Name (4)

1 Second Chapter 238 - (S2) Ep. 236 - A Bad Name (3)

1 Second Chapter 237 - (S2) Ep. 235 - A Bad Name (2)

1 Second Chapter 236 - (S2) Ep. 234 - A Bad Name (1)

1 Second Chapter 235 - (S2) Ep. 233 - The Characteristics of a Person with Integrity (3)

1 Second Chapter 234 - (S2) Ep. 232 - The Characteristics of a Person with Integrity (2)

1 Second Chapter 233 - (S2) Ep. 231 - The Characteristics of a Person with Integrity (1)

1 Second Chapter 232 - (S2) Ep. 230 - Relay

1 Second Chapter 231 - (S2) Ep. 229 - X

1 Second Chapter 230 - (S2) Ep. 228 - The Man (2)

1 Second Chapter 229 - (S2) Ep. 227 - The Man (1)

1 Second Chapter 228 - (S2) Ep. 226 - The Mystery of Mt. Jinduk (4)

1 Second Chapter 227 - (S2) Ep. 225 - The Mystery of Mt. Jinduk (3)

1 Second Chapter 226 - (S2) Ep. 224 - The Mystery of Mt. Jinduk (2)

1 Second Chapter 225 - (S2) Ep. 223 - The Mystery of Mt. Jinduk (1)

1 Second Chapter 224 - (S2) Ep. 222 - Spring (2)

1 Second Chapter 223 - (S2) Ep. 221 - Spring (1)

1 Second Chapter 222 - (S2) Ep. 220 - Gwangyeol Heo and Yerin Kang (2)

1 Second Chapter 221 - (S2) Ep. 219 - Gwangyeol Heo and Yerin Kang (1)

1 Second Chapter 220 - (S2) Ep. 218 - 2-3

1 Second Chapter 219 - (S2) Ep. 217 - 1-2

1 Second Chapter 218 - (S2) Ep. 216 - 1-1

1 Second Chapter 217 - (S2) Ep. 215 - My Little Sister Is in There (5)

1 Second Chapter 216 - (S2) Ep. 214 - My Little Sister Is in There (4)

1 Second Chapter 215 - (S2) Ep. 213 - My Little Sister Is in There (3)

1 Second Chapter 214 - (S2) Ep. 212 - My Little Sister Is in There (2)

1 Second Chapter 213 - (S2) Ep. 211 - My Little Sister Is in There (1)

1 Second Chapter 212 - (S2) Ep. 210 - Amusement Park (2)

1 Second Chapter 211 - (S2) Ep. 209 - Amusement Park (1)

1 Second Chapter 210 - (S2) Ep. 208 - Aren’t You Being Too Complacent? (2)

1 Second Chapter 209 - (S2) Ep. 207 - Aren’t You Being Too Complacent? (1)

1 Second Chapter 208 - (S2) Ep. 206 - RIT

1 Second Chapter 207 - (S2) Ep. 205 - Special

1 Second Chapter 206 - (S2) Ep. 204 - Sigwang Special Rescue and Ambulance Services

1 Second Chapter 205 - (S2) Ep. 203 - Inauguration Ceremony (2)

1 Second Chapter 204 - (S2) Ep. 202 - Inauguration Ceremony (1)

1 Second Chapter 203 - (S2) Ep. 201 - Parting Ways

1 Second Chapter 202 - (S2) Ep. 200 - Flare

1 Second Chapter 201 - (S2) Ep. 199 - Some Help

1 Second Chapter 200 - (S2) Ep. 198 - Surprise Gift

1 Second Chapter 199 - (S2) Ep. 197 - Sigwang HRS Platoon Two

1 Second Chapter 198 - (S2) Ep. 196 - He’d Be Mighty Pleased

1 Second Chapter 197 - (S2) Ep. 195 - Spotlight

1 Second Chapter 196 - (S2) Ep. 194 - You Reap What You Sow

1 Second Chapter 195 - (S2) Ep. 193 - Grand Finale

1 Second Chapter 194 - (S2) Ep. 192 - Finale (4)

1 Second Chapter 193 - (S2) Ep. 191 - Finale (3)

1 Second Chapter 192 - (S2) Ep. 190 - Finale (2)

1 Second Chapter 191 - (S2) Ep. 189 - Finale (1)

1 Second Chapter 190 - (S2) Ep. 188 - Right Under One's Nose (4)

1 Second Chapter 189 - (S2) Ep. 187 - Right Under One's Nose (3)

1 Second Chapter 188 - (S2) Ep. 186 - The Case of the Jakdo Serial Arson (5)

1 Second Chapter 187 - (S2) Ep. 185 - The Case of the Jakdo Serial Arson (4)

1 Second Chapter 186 - (S2) Ep. 184 - The Case of the Jakdo Serial Arson (3)

1 Second Chapter 185 - (S2) Ep. 183 - The Case of the Jakdo Serial Arson (2)

1 Second Chapter 184 - (S2) Ep. 182 - The Case of the Jakdo Serial Arson (1)

1 Second Chapter 183 - (S2) Ep. 181 - Ignite

1 Second Chapter 182 - (S2) Ep. 180 - Crossover

1 Second Chapter 181 - (S2) Ep. 179 - Right Under One's Nose (2)

1 Second Chapter 180 - (S2) Ep. 178 - Right Under One's Nose (1)

1 Second Chapter 179 - (S2) Ep. 177 - Fuse (Season 2 Premiere)

1 Second Chapter 178 - (S1) Epilogue

1 Second Chapter 177 - Ep. 176 - Assemble (Season 1 Finale)

1 Second Chapter 176 - Ep. 175 - The Final Test (7)

1 Second Chapter 175 - Ep. 174 - The Final Test (6)

1 Second Chapter 174 - Ep. 173 - The Final Test (5)

1 Second Chapter 173 - Ep. 172 - The Final Test (4)

1 Second Chapter 172 - Ep. 171 - The Final Test (3)

1 Second Chapter 171 - Ep. 170 - The Final Test (2)

1 Second Chapter 170 - Ep. 169 - The Final Test (1)

1 Second Chapter 169 - Ep. 168 - Overcome (2)

1 Second Chapter 168 - Ep. 167 - The Mafia Game (2)

1 Second Chapter 167 - Ep. 166 - The Mafia Game (1)

1 Second Chapter 166 - Ep. 165 - Joint Underwater Search and Rescue (4)

1 Second Chapter 165 - Ep. 164 - Joint Underwater Search and Rescue (3)

1 Second Chapter 164 - Ep. 163 - Joint Underwater Search and Rescue (2)

1 Second Chapter 163 - Ep. 162 - Joint Underwater Search and Rescue (1)

1 Second Chapter 162 - Ep. 161 - Gut Feeling vs. Extrasensory Perception (3)

1 Second Chapter 161 - Ep. 160 - Gut Feeling vs. Extrasensory Perception (2)

1 Second Chapter 160 - Ep. 159 - Gut Feeling vs. Extrasensory Perception (1)

1 Second Chapter 159 - Ep. 158 - Older Firefighter

1 Second Chapter 158 - Ep. 157 - Team Rescue Operation Competition (4)

1 Second Chapter 157 - Ep. 156 - Team Rescue Operation Competition (3)

1 Second Chapter 156 - Ep. 155 - Team Rescue Operation Competition (2)

1 Second Chapter 155 - Ep. 154 - Team Rescue Operation Competition (1)

1 Second Chapter 154 - Ep. 153 - First Week of HRS Main Exam (7)

1 Second Chapter 153 - Ep. 152 - First Week of HRS Main Exam (6)

1 Second Chapter 152 - Ep. 151 - First Week of HRS Main Exam (5)

1 Second Chapter 151 - Ep. 150 - First Week of HRS Main Exam (4)

1 Second Chapter 150 - Ep. 149 - First Week of HRS Main Exam (3)

1 Second Chapter 149 - Ep. 148 - First Week of HRS Main Exam (2)

1 Second Chapter 148 - Ep. 147 - First Week of HRS Main Exam (1)

1 Second Chapter 147 - Ep. 146 - Side by Side

1 Second Chapter 146 - Ep. 145 - At the Peak

1 Second Chapter 145 - Ep. 144 - Hike (2)

1 Second Chapter 144 - Ep. 143 - Hike (1)

1 Second Chapter 143 - Ep. 142 - Leave of Absence (2)

1 Second Chapter 142 - Ep. 141 - Leave of Absence (1)

1 Second Chapter 141 - Ep. 140 - Flood (3)

1 Second Chapter 140 - Ep. 139 - Flood (2)

1 Second Chapter 139 - Ep. 138 - Flood (1)

1 Second Chapter 138 - Ep. 137 - The Night Before (3)

1 Second Chapter 137 - Ep. 136 - The Night Before (2)

1 Second Chapter 136 - Ep. 135 - The Night Before (1)

1 Second Chapter 135 - Ep. 134 - Haetae Jeong

1 Second Chapter 134 - Ep. 133 - A Special Proposal (3)

1 Second Chapter 133 - Ep. 132 - A Special Proposal (2)

1 Second Chapter 132 - Ep. 131 - A Special Proposal (1)

1 Second Chapter 131 - Ep. 130 - Anaphylactic Shock (4)

1 Second Chapter 130 - Ep. 129 - Anaphylactic Shock (3)

1 Second Chapter 129 - Ep. 128 - Anaphylactic Shock (2)

1 Second Chapter 128 - Ep. 127 - Anaphylactic Shock (1)

1 Second Chapter 127 - Ep. 126 - National Athlete Yerin Kang (2)

1 Second Chapter 126 - Ep. 125 - National Athlete Yerin Kang (1)

1 Second Chapter 125 - Ep. 124 - Proof

1 Second Chapter 124 - Ep. 123 - Physical Fitness Test (6)

1 Second Chapter 123 - Ep. 122 - Physical Fitness Test (5)

1 Second Chapter 122 - Ep. 121 - Physical Fitness Test (4)

1 Second Chapter 121 - Ep. 120 - Physical Fitness Test (3)

1 Second Chapter 120 - Ep. 119 - Physical Fitness Test (2)

1 Second Chapter 119 - Ep. 118 - Physical Fitness Test (1)

1 Second Chapter 118 - Ep. 117 - Assemble

1 Second Chapter 117 - Ep. 116 - Hero Worthy

1 Second Chapter 116 - Ep. 115 - Dojin Choi (4)

1 Second Chapter 115 - Ep. 114 - Dojin Choi (3)

1 Second Chapter 114 - Ep. 113 - Dojin Choi (2)

1 Second Chapter 113 - Ep. 112 - Dojin Choi (1)

1 Second Chapter 112 - Ep. 111 - Overcome

1 Second Chapter 111 - Ep. 110 - Well, Well...

1 Second Chapter 110 - Ep. 109 - State of Hyperstress, Disconnect (6)

1 Second Chapter 109 - Ep. 108 - State of Hyperstress, Disconnect (5)

1 Second Chapter 108 - Ep. 107 - State of Hyperstress, Disconnect (4)

1 Second Chapter 107 - Ep. 106 - State of Hyperstress, Disconnect (3)

1 Second Chapter 106 - Ep. 105 - State of Hyperstress, Disconnect (2)

1 Second Chapter 105 - Ep. 104 - State of Hyperstress, Disconnect (1)

1 Second Chapter 104 - Ep. 103 - The Expansion of Sigwang HRS (2)

1 Second Chapter 103 - Ep. 102 - Spin-off Episode: Coronavirus (End)

1 Second Chapter 102 - Ep. 101 - Spin-off Episode: Coronavirus (3)

1 Second Chapter 101 - Ep. 100 - Spin-off Episode: Coronavirus (2)

1 Second Chapter 100 - Ep. 99 - Spin-off Episode: Coronavirus (1)

1 Second Chapter 99 - Ep. 98 - Preparing to Part

1 Second Chapter 98 - Ep. 97 - Sigwang HRS Rescue Mission (6)

1 Second Chapter 97 - Ep. 96 - Sigwang HRS Rescue Mission (5)

1 Second Chapter 96 - Ep. 95 - Sigwang HRS Rescue Mission (4)

1 Second Chapter 95 - Ep. 94 - Sigwang HRS Rescue Mission (3)

1 Second Chapter 94 - Ep. 93 - Sigwang HRS Rescue Mission (2)

1 Second Chapter 93 - Ep. 92 - Sigwang HRS Rescue Mission (1)

1 Second Chapter 92 - Ep. 91 - Sigwang Heavy Rescue Service

1 Second Chapter 91 - Ep. 90 - Emergency Mobilization (2)

1 Second Chapter 90 - Ep. 89 - Emergency Mobilization (1)

1 Second Chapter 89 - Ep. 88 - Emergency

1 Second Chapter 88 - Ep. 87 - Volunteer Firefighter Corps (3)

1 Second Chapter 87 - Ep. 86 - Volunteer Firefighter Corps (2)

1 Second Chapter 86 - Ep. 85 - Volunteer Firefighter Corps (1)

1 Second Chapter 85 - Ep. 84 - Missing Person Search (6)

1 Second Chapter 84 - Ep. 83 - Missing Person Search (5)

1 Second Chapter 83 - Ep. 82 - Missing Person Search (4)

1 Second Chapter 82 - Ep. 81 - Missing Person Search (3)

1 Second Chapter 81 - Ep. 80 - Missing Person Search (2)

1 Second Chapter 80 - Ep. 79 - Missing Person Search (1)

1 Second Chapter 79 - Ep. 78 - Nine

1 Second Chapter 78 - Ep. 77 - The Expansion of Sigwang HRS (1)

1 Second Chapter 77 - Ep. 76 - Bukam Choi and Seongdeok Choi (2)

1 Second Chapter 76 - Ep. 75 - Bukam Choi and Seongdeok Choi (1)

1 Second Chapter 75 - Ep. 74 - Disciplinary Committee (7)

1 Second Chapter 74 - Ep. 73 - Disciplinary Committee (6)

1 Second Chapter 73 - Ep. 72 - Disciplinary Committee (5)

1 Second Chapter 72 - Ep. 71 - Disciplinary Committee (4)

1 Second Chapter 71 - Ep. 70 - Disciplinary Committee (3)

1 Second Chapter 70 - Ep. 69 - Disciplinary Committee (2)

1 Second Chapter 69 - Ep. 68 - Disciplinary Committee (1)

1 Second Chapter 68 - Ep. 67 - Metallic Fire (5)

1 Second Chapter 67 - Ep. 66 - Metallic Fire (4)

1 Second Chapter 66 - Ep. 65 - Metallic Fire (3)

1 Second Chapter 65 - Ep. 64 - Metallic Fire (2)

1 Second Chapter 64 - Ep. 63 - Metallic Fire (1)

1 Second Chapter 63 - Ep. 62 - Spin-off Episode: Hosu (2)

1 Second Chapter 62 - Ep. 61 - Spin-off Episode: Hosu (1)

1 Second Chapter 61 - Ep. 60 - Spin-off Episode: Yeongjin Kim (2)

1 Second Chapter 60 - Ep. 59 - Spin-off Episode: Yeongjin Kim (1)

1 Second Chapter 59 - Ep. 58 - Aftermath (2)

1 Second Chapter 58 - Ep. 57 - Aftermath (1)

1 Second Chapter 57 - Ep. 56 - Mt. Jakdo Wildfire (4)

1 Second Chapter 56 - Ep. 55 - Mt. Jakdo Wildfire (3)

1 Second Chapter 55 - Ep. 54 - Mt. Jakdo Wildfire (2)

1 Second Chapter 54 - Ep. 53 - Mt. Jakdo Wildfire (1)

1 Second Chapter 53 - Ep. 52 - Firefighter Engineer Jintae Gu (3)

1 Second Chapter 52 - Ep. 51 - Firefighter Engineer Jintae Gu (2)

1 Second Chapter 51 - Ep. 50 - Firefighter Engineer Jintae Gu (1)

1 Second Chapter 50 - Ep. 49 - A Deep Breath

1 Second Chapter 49 - Ep. 48 - PTSD: Jongtan Baek (4)

1 Second Chapter 48 - Ep. 47 - PTSD: Jongtan Baek (3)

1 Second Chapter 47 - Ep. 46 - PTSD: Jongtan Baek (2)

1 Second Chapter 46 - Ep. 45 - PTSD: Jongtan Baek (1)

1 Second Chapter 45 - Ep. 44 - Byeong-Gi Jang (3)

1 Second Chapter 44 - Ep. 43 - Byeong-Gi Jang (2)

1 Second Chapter 43 - Ep. 42 - Byeong-Gi Jang (1)

1 Second Chapter 42 - Ep. 41 - Emergency Rescue Dispatch (3)

1 Second Chapter 41 - Ep. 40 - Emergency Rescue Dispatch (2)

1 Second Chapter 40 - Ep. 39 - Emergency Rescue Dispatch (1)

1 Second Chapter 39 - Ep. 38 - Delicious Instant Noodles

1 Second Chapter 38 - Ep. 37 - What Is a Group?

1 Second Chapter 37 - Ep. 36 - Self-Reflection (2)

1 Second Chapter 36 - Ep. 35 - Self-Reflection (1)

1 Second Chapter 35 - Ep. 34 - Fire Assistant Chief Dujin Baek (2)

1 Second Chapter 34 - Ep. 33 - Fire Assistant Chief Dujin Baek (1)

1 Second Chapter 33 - Ep. 32 - Industrial Park Fire (3)

1 Second Chapter 32 - Ep. 31 - Industrial Park Fire (2)

1 Second Chapter 31 - Ep. 30 - Industrial Park Fire (1)

1 Second Chapter 30 - Ep. 29 - Six

1 Second Chapter 29 - Ep. 28 - Fire Assistant Chief Dujin Baek (1)

1 Second Chapter 28 - Ep. 27 - First Call (3)

1 Second Chapter 27 - Ep. 26 - First Call (2)

1 Second Chapter 26 - Ep. 25 - First Call (1)

1 Second Chapter 25 - Ep. 24 - Jakdo Fire Station Platoon 2 (3)

1 Second Chapter 24 - Chapter 24

1 Second Chapter 23 - Chapter 23

1 Second Chapter 22 - Chapter 22

1 Second Chapter 21 - Chapter 21

1 Second Chapter 20 - Chapter 20

1 Second Chapter 19 - Chapter 19

1 Second Chapter 18 - Chapter 18

1 Second Chapter 17 - Chapter 17

1 Second Chapter 16 - Chapter 16

1 Second Chapter 15 - Chapter 15

1 Second Chapter 14 - Chapter 14

1 Second Chapter 13 - Chapter 13

1 Second Chapter 12 - Chapter 12

1 Second Chapter 11 - Chapter 11

1 Second Chapter 10 - Chapter 10

1 Second Chapter 9 - Chapter 9

1 Second Chapter 8 - Chapter 8

1 Second Chapter 7 - Chapter 7

1 Second Chapter 6 - Chapter 6

1 Second Chapter 5 - Chapter 5

1 Second Chapter 4 - Chapter 4

1 Second Chapter 3 - Chapter 3

1 Second Chapter 2 - Chapter 2

1 Second Chapter 1 - Chapter 1

1 Second

1 Second chapters