Tommy ends up promising Janet that he will help her with the baby, but neglects to tell her about his future plans with Sheila. Meanwhile, Franco decides to check up on his daughter, Keela.

Tommy and Janet deal with revelations about the baby; Sean learns a secret that Mike has been trying to hide; the new probie holds the guys to thier agreement about doing no 'probie' work; and lou's cousin Mike visits.

A devastating fire has a profound effect on the crew; Tommy wrestles with his feelings about the baby; Alicia (Susan Sarandon) returns with a proposition for Franco; Troy breaks up with Sheila while Lou makes a tough decision about Theresa; and Sean apologizes to Mike about the fire he set that burned down Mike's mother's house.

Janet plots revenge when she learns what Tommy did with the baby; Franco questions his marriage proposal to Natalie in light of Alicia and Keela's return; and Tommy faces his ghosts.

Tommy plays hero in someone else's uniform, confusing the crew; Colleen finds a new reason to get upset with Tommy; Natalie asks Franco for a favor; a rift between Mike and Black Shawn nearly leads to blows; and Tommy makes a move on the chief's daughter. This does not please the chief.