In the wake of Billy Warren's death, NYPD Detective Timo Gavin reluctantly fuels his brother, Tommy's, quest for vengeance by pointing him to the homeless teens who were saved from the blaze. And after one of them admits that the fire started when she was forced to fend off some unwanted sexual advances, they tell Tommy where the homeless crack addict is staying. Meanwhile, as a bad tip causes Jerry to lose big on a baseball bet, the firefighters learn that a woman is being sent to replace Billy. And as he and Janet continue to disagree over their daughter's lesbian romance, after finally admitting that he feels better about Colleen having sex with girls instead of boys, Tommy encourages her to invite Jennifer over to his house. While Lou is surprised at Billy's ex-wife, Sondra's, sudden interest in his poetry, a discarded pregnancy test found at Janet's house sparks a confrontation between Tommy and Colleen that, even though she isn't pregnant, causes problems with Jennifer. Told that he must settle up his gambling losses by the end of the week, Jerry is furious to learn that his wife, Jeannie, accidentally threw out his hidden cash. So, with Jerry forced to scrounge around for $5,000 to keep his bookie off his back, despite being uncomfortable with the interest that Paula's daughter has shown in him, Mike is lured into having sex with her. Meanwhile, as Lou digs in to resist taking on a female firefighter helping an elderly woman escape a dangerous gas leak allows Jerry to surreptitiously pocket her diamond ring and hidden money. As Lou tries keeping Sondra at bay, a showdown over the pregnancy test has Tommy thinking that a baby might help patch up his broken marriage. Then, with Sean and Franco along to help, he tracks down and nearly kills the drug addict he holds responsible for Billy's death. Finally, once Paula sends Mike packing after learning of his affair with Nicole, after giving in to Sondra, Lou isn't sure what to do next. And as Jerry guiltily returns the stolen ring and money, news that the pregnancy test was mistaken forces Janet to admit that even a new baby could never reunite her and Tommy. So, after Tommy uses sex Sheila to ease his pain, Jerry and Lou are disappointed when no one wants to help freeze out the new female firefighter after all.