The guys at 62 Truck struggle to pick up the pieces and move on following a major fire. At the Fire Academy, meanwhile, a new batch of probies hear a familiar speech from a new leader.

Colleen and Black Shawn wed, but the day's glow becomes an inferno when a major fire breaks out.

Lou delivers Tommy's letters to Sheila and Janet behind Tommy's back. And "Francostein" runs a tight firehouse as Lou's interim replacement. Then he gets an opportunity to test his leadership skills on a call.

Tommy crosses an emotional line with Sheila and lures Lou into a psychological trap after he visits Ground Zero with the guys. Meanwhile, Franco challenges Lou's authority at the firehouse; and Sheila makes Colleen an offer (and won't let her refuse it).

The fallout from Tommy's 9/11 interview hits like a ton of bricks, and reporter Pam Keppler begins probing Tommy's personal life as well, which promises to bode ill for everyone in 62 Truck. So Needles proposes "to fight fire with fire," but Franco won't go along. Meanwhile, Sean works up the nerve to confront Emily over "the smell," and Tommy lays down the law to his family (Sheila included).

Tommy's 9/11 interview airs, with predictably combustible results; Sean goes out with Emily, the bridal-shop clerk; Kelly gets the results of her blood test; and preparations for Black Shawn and Colleen's wedding hit a snag. Meanwhile, Lou's reading list includes "The Celery Bible."

Colleen gets some sage advice from Mike and makes an offer to Teddy that Tommy is not likely to like; Tommy tells Kelly about the ghosts in his life and makes an offer to Lou, who also gets a stiff dose of tough love from the guys, who want him to diet. Meanwhile, Chief Feinberg remains alternately distant and combative; and Tommy decides to sit for an interview for the 9/11 TV documentary.

Tommy responds emotionally when he learns about a 9/11 documentary featuring Jimmy Keefe. He also runs into Kelly, who has disquieting news. Meanwhile, Lou faces his FDNY physical with trepidation (and a little help from his friends).

The seventh (and final) season begins with Tommy's family life being shaken up by Sheila and the pregnant Janet, who are now best friends. ("We bonded," Sheila says.) Meanwhile, Black Shawn wants to take his relationship with Colleen to the next level; Mickey and Teddy go into business together; and Damien is still in a chair in the wake of his on-the-job accident.