A series of freeway car accidents leads to a catastrophic overpass collapse that endangers the lives of civilians and members of the 118.
It's spring break, but the well-deserved break brings some big changes when an old friend surprises Spencer and Jordan; Olivia searches for the courage to share her truth; Patience has a decision to make as her career skyrockets.
A sniper targets the Los Angeles Fire Department; the rivalry between Chris, Street and Tan ratchets up; Street and Molly's relationship is strained by his complicated history with his imprisoned mother.