A tornado's path leads the Station 113 team to an intense rescue at a water tower. Ryan and his wife reach a turning point. Dixie has an assignment for Blue. Cammie coaches a distressed teenager through her mother's childbirth.

Don and the 113 team respond to emergencies at a waterpark and a sorority house. The crew puts Blue's skills and knowledge to the test as he trains for his firefighter exam. Blythe digs into Blue's past.