The 118 race to the rescues with emergencies at a spin class; in a hair salon and to a husband and wife in a compromising position; Buck discovers new cognitive abilities post lightning strike; Hen and Karen are concerned when they find out Denny has been seeing his biological father behind their backs; Maddie and Chimney enlist Athena and Bobby's help with a suspicious neighbor.
Elenco: Peter Krause , Angela Bassett , Oliver Stark , Kenneth Choi , Aisha Hinds , Rockmond Dunbar , Jennifer Love Hewitt , Ryan Guzman , Marcanthonee Reis , Corinne Massiah , Gavin McHugh , Connie Britton .