Tommy confronts Colleen and her new boyfriend. Probie must make a crucial decision regarding his terminally-ill mother so he asks Tommy for advice. Natalie is upset at Franco for not considering marriage.
The firehouse learns of the Chief's suicide. Tommy agrees to buy things for his daughter Colleen in exchange for her keeping in contact. He and Janet decide to see a marriage counselor. Franco plans to propose to Natalie.
A devastating fire has a profound effect on the members of 62 Truck. Tommy wrestles with his feelings about the baby. Alicia returns with a propositions for Franco. Lou makes a tough decision about Theresa.
While Janet exacts revenge when she learns Tommy gave her baby to Sheila, thus ending all attempts to repair their relationship, Franco questions his proposal to Natalie by visiting Alcia and learning how he really feels.
The Gavin family stages a duo intervention after several disturbing family calls. The girl from the restaurant leaves Tommy wanting for much more. In order to get her baby back, Janet must take matters into her own hands.
The Gavin family AA group's first meeting doesn't go exactly as planned. Tommy bribes Colleen for information on Janet. Franco learns the truth about Natalie from Richie while Lou contemplates revenge on Cousin Mike.
Tommy goes on another memorable date with Beth for the sake of the crew. Black Shawn proves himself in an unexpected arena. Franco realizes what he's really lost while Latrina shows she knows how to keep Lou happy.
Tommy plays hero in someone else's uniform which causes confusion. Colleen suffers heartbreak and takes it out on Tommy. Natalie asks Franco for a favor. A rift between Mike and Black Shawn nearly leads to blows.