Declan Pratt

The 118 face emergencies at a spin class and a hair salon; a husband and wife couple find themselves in a compromising position; Buck discovers new cognitive abilities; Hen and Karen find out Denny has been seeing his biological father.

A dry thunderstorm rolls over Los Angeles, bringing in a series of lightning strike emergencies for the 118 and leaving a first responder's life hanging in the balance; Chimney gets a surprise from a visiting Albert.

A series of freeway car accidents lead to a catastrophic overpass collapse that endangers the lives of civilians and members of the 118.

A skating mishap at an ice show; an accident involving a self-driving car; a fulfilment warehouse robot goes rogue; Eddie's after-hours fight club gets out of control; Hen struggles in her relationship with Karen.

Holiday-themed incidents include a shopper pushed over the edge, a woman who is literally having a 'Blue Christmas' and a luggage handler accident on a tarmac; Maddie revisits her past to embrace her future; Bobby receives shocking news.

The Santa Ana winds bring in a variety of emergencies that are weirder than-usual; a family dog retrieves a severed hand; a young woman sleep-drives into the station; Denny questions Hen and Karen about his biological parents.