| 上映日期： | 2018年1月3日 |
| 片长： | 43 分钟 |
| 国家： | 美国 |
| 语言： | 英语 |
| 制作公司： | |
| 官方剧情： | Explores the high-pressure experiences of the first responders who are thrust into the most frightening, shocking and heart-stopping situations. |
| 第 4 季 | 共 9 集 播出时间：2021年1月19日 |
| 第 1 集 | The New Abnormal 播出时间：2021年1月19日 The Hollywood Reservoir dam breaks. The team adjusts to life during the pandemic. |
| 第 2 集 | Alone Together 播出时间：2021年1月26日 In the aftermath of the dam break, massive mudslides wreak havoc throughout Los Angeles. |
| 第 3 集 | Future Tense 播出时间：2021年2月2日 The 118 race to save a man under siege by his high-tech smart home, and a yoga teacher who has lost her vision. Athena hunts down a bank robber disguised by Covid protocols. Meanwhile, Buck confides in Maddie, Hen clashes with her antagonizing medical school lab partner and members of the 118's crew prep for an out-of-state mission. |
| 第 4 集 | 9-1-1, What's Your Grievance? 播出时间：2021年2月9日 Athena investigates a mysterious murder during a neighborhood block party and the 118 rush to save lives endangered by a bomb threat. Meanwhile, Chimney has a hard time keeping secrets when Maddie and Buck's parents come to town. |
| 第 5 集 | Buck Begins 播出时间：2021年2月16日 The 118 race to save the lives of workers trapped in a five-alarm factory fire. Meanwhile, Maddie reveals a painful family secret that causes Buck to confront his childhood and answer why he is the daredevil he is today. |
| 第 6 集 | Jinx 播出时间：2021年2月23日 The 118 believes their fabled firehouse superstition has come true when they have the day from hell with a never-ending series of bizarre emergency calls - Athena is in hot pursuit of a 118 firetruck; a man who duct-taped himself to freeway billboard, a garage full of fireworks and a restaurant manager destroying his own business. Meanwhile, Eddie feels a spark with Christopher's former teacher, but admits to Bobby he may not be ready to move on in his personal life just yet. |
| 第 7 集 | There Goes the Neighborhood 播出时间：2021年3月2日 The 118 rush to save a man pinned under a Humvee, and a garage band that rocks out too hard. Enlisting Bobby and Athena's help, Michael installs a new "rear window," and turns into an amateur detective after noticing strange behavior at a nearby apartment. Meanwhile, Hen's mother unexpectedly arrives and announces she is moving to LA, and Buck's re-entry into the dating pool ends in disaster. |
| 第 8 集 | Breaking Point 播出时间：2021年3月9日 The 118 are called to the tarmac when a flight attendant reaches her limit with her flight's passengers. Athena discovers that quarantine has pushed a couple to their breaking point. Meanwhile, Eddie worries Christopher will not accept him dating, Buck reconnects with an old flame and finds himself in the middle of Albert's new relationship and Maddie and Chimney make a big decision about their baby. |
| 第 9 集 | Episode 9 播出时间：2021年4月20日 |