Vince's judgment is compromised when a harrowing rescue of two siblings triggers emotional memories of the night his daughter died in a car accident.

An internal investigation is launched after a difficult rescue went awry and a life was lost.

The crews work to contain a dangerous forest fire and save a group of environmentalists protesting a housing development.

The crews respond to the scene of a train crash where the rescue has the potential to spiral out of control when they discover the train is full of illicit cargo, and Robin, an enigmatic modern-day train hopper, helps injured patients.

The station 42 and Three Rock crews face a daring rescue when a massive mudslide tears through Edgewater. Meanwhile, Bode's freedom is on the line at his parole hearing.

Bode is back in prison where he receives some shocking news. Meanwhile, the station 42 crew responds to a massive earthquake that rocks Edgewater to its core.

Gabriela prepares to walk down the aisle on her wedding day as Bode receives some surprising news.

Extremely high winds and dangerous conditions push the Zebel Ridge fire into Edgewater, threatening Three Rock and Walter's care facility.