Series two will reunite us with Detective Sergeant Mackenzie ‘Mack’ Clarke (Anna Samson), who’s longing to get back to the UK and the life she’s always craved. But for now she’s stuck in Dolphin Cove, dodging her ex-fiancée Glenn’s (Tai Hara) upcoming wedding after overhearing his unexpected declaration of love in the series one finale – a confession that she can’t unhear.
　　Luckily for Mack, her compulsion to solve impossible cases serves as a great distraction, and there’s no shortage of murders to investigate. From the literary world to state-of-the-art shark labs, dating apps and rock concerts, Mack and her team face challenging mysteries with their unique blend of humour and tenacity. But Mack’s biggest challenge of all? Finding a way to exist in Dolphin Cove as the ultimate outsider.

　　But 9-1-1 could get another spinoff on ABC in a new location, with Las Vegas among potential cities rumored to follow Los Angeles (9-1-1) and Austin (9-1-1: Lone Star).

　　接续上季救恩医院爆炸事故，大家生死未卜。 面对极度混乱的局面，格蕾的团队会点应对？新一季继续同时间竞赛，挑战每一个生死抉择。

1940年的伯明翰，在第二次世界大战的混乱中，汤米·谢尔比（基里安·墨菲 饰）从自我放逐中回归，直面着迄今为止最具破坏性的清算。家族和国家的未来岌岌可危，汤米必须面对自己心中的恶魔，并选择是直面它还是将其毁灭。

　　第二季故事发生在第一季结局的10个月后，时间线为一个美国独立纪念日的周末。

主创确认本剧会有第二季。

　　Voight teams up with an unlikely ally to take a killer off the streets while fighting to bring his Intelligence unit back together.