A day at ground zero inspires Tommy to write letters to his loved ones. When Lou betrays his trust, Tommy returns to ground zero with an old friend.

Tommy swoops into action, putting an end to Kelly's dull date and to his spell of uselessness. Lou becomes godfather, Colleen finds a dress, and Tommy sits down for his interview.

Tommy has his badge revoked when his latest tirade goes national. But Sheila’s two-pronged attack hits Tommy’s critics where they least expect it, vindicating Tommy and clearing the Gavin family name.

Franco demands a sense of responsibility around the house, but a precarious call puts his leadership skills to the test. Lou delivers Tommy's letters unbeknownst to Tommy.

In the aftermath of the fire, the members of 62 truck struggle to pick up the pieces and look towards the future. Down at The Rock, the new probies receive a familiar speech and stand before a new leader.

In the tradition of the Gavin family, Colleen's wedding is an emotional if not debaucherous affair. The high spirits quickly fade, however, when the guys tackle the mother of all fires.

With Damian confined to a chair and a new baby on the way, Sheila and Janet join forces and shake-up Tommy’s family life.

The guys go stir crazy waiting to catch a job. Lou fakes his physical, a news team memorializes Jimmy, and Tommy is saved by an unfamiliar face.

What starts as a controlled interview takes a turn for the worse, ending in a full-on brawl. The beef continues even after the guys survive a harrowing scenario at a call.