The first responders race to help a homeless man crushed in a garbage truck, a mother and son in a crashed elevator and extreme hoarders entombed in their house. Meanwhile, Athena jumps into to the dating pool, as Buck and Abby's relationship is tested by her ailing mother.
- Angela Bassett as Officer Athena Grant
- Peter Krause as Captain Bobby Nash
- Connie Britton as Abby Clark
- Kenneth Choi as Firefighter Howie Han
- Aisha Hinds as Firefighter Henrietta Wilson
- Rockmond Dunbar as Michael Grant
- Oliver Stark as Firefighter Evan Buckley