As the fourth season begins, Janet has given birth to a baby boy---whom she fears prefers Tommy to her. But Tommy has a bigger problem: He's suspected of starting the beach-house fire. Meanwhile, Jerry's son asks him to be his best man at his commitment ceremony; Richie wants Franco to marry Natalie; Lou and Theresa get distracted in church; and the volunteer firefighter (Jennifer Esposito) who rescued Tommy from the beach house takes an interest in him---and isn't shy about letting him know.

EPISODE 2 " TUESDAY " OF RESCUE ME SEASON 4 BEGINS WHEN SHEILA LIES TO TOMMY WHEN HE CONFRONTS HER IN THE CASE REGARDING TO BEACH HOUSE ACCIDENT.in the mean while uncle teddy got bailed and is released out from the jail.collin in the end runs away with her rock musician boy friend and mike mother has a death bed request.

episode 3 " commitment " of rescue me season 4 kicks off WITH tommy meets colleens boyfriend.JERRY comes to know that he has fluked his physical and he is given a desk job .UNCLE TEDDY BREAKS INTO PRISON.Tommy resists the advances of the volunteer firefighter who previously pulled him out of a fire.

Emotions flare up when the crew learns about Jerry's death; Tommy's manhood is called into question after some embarrassing romantic encounters; and Lou resorts to blackmail to recruit Bart (Larenz Tate) as the new probie for the house basketball team.

The firehouse gets a new chief (Jerry Adler), who is rumored to possess a very special gift; Tommy suffers embarrassment during a hockey game against the NYPD; Franco works up the nerve to propose to Natalie while Sean tries to talk Maggie out of a divorce; and Sheila makes a surprising proposition as Janet's depression deepens.

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 their 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 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.

The Gavin clan stages an intervention after several disturbing family calls; the mysterious woman from the restaurant leaves Tommy wanting more; Janet must take matters into her own hands to get her baby back; and a depressed Mike calls Tommy in a moment of despair.

The Gavins attend their first AA meeting; Tommy turns to Colleen for information about Janet; Richie tells Franco the truth about Natalie; and Lou mulls revenge on his cousin.

Tommy goes on a second date with Beth for the sake of the crew. He also sees Valerie again, and makes a trade with Colleen. Meanwhile, Black Shawn proves himself in an unexpected arena; Franco sees what he has lost; and Lou finds something very attractive about Latrina.

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.

The sighting of Jimmy's , ghost, is the talk of the firehouse; Colleen blames Tommy for her failed relationship, and Tommy figures out a way to fix his own. Meanwhile, Franco and Natalie come to an understanding, as do Lou, Mike and Latrina; Tommy and his father take in a ball game.