Brian, afraid that he may have lost his last chance at love, searches for a former flame, Tracy. To his surprise, he discovers that he is the father to her son, Dylan. Tracy decides that Brian should raise the boy, and she drops him off at the Griffin's house. When Dylan runs rough-shot in the house, Brian's attitude towards parenting doesn't settle too well with Lois and Peter.
Peter and Lois's marriage hits a bit of a snag. When Brian wins the New England Rising Writer's award, the three of them head to Martha's Vineyard for a nice relaxing vacation. Peter's usual drinking habits take over, and he soon spirals out of control, as does Brian's self restraint, as he soon professes his love for Lois. Peter and Brian test their friendship over the woman of their dreams.
Peter decides to grow a mustache, and after being mistaken for a fireman, ends up lending a hand when a fire breaks out at a local fast food restaurant. The owner gives him unlimited burgers as a thank you, but he eats too many and has a stroke. When Peter recovers, he vows to expose the fast-food company for what it really is, becoming friends with a genetically engineered cow along the way.
Peter starts an anti-immigration group after being caught up in the pro-American sentiment at a Veterans' Day parade, but his tune quickly changes when he finds out he was born in Mexico. Unable to prove his citizenship, pass the naturalization test or convince investigators that his marriage to Lois is for real, he ends up working as a groundskeeper on his father-in-law's estate and leading the fight for immigrant rights.
When Joe feels that his disability is holding Bonnie back from living a full life, he decides to get a leg transplant. Excited about his new ability to walk, Joe engages in extreme sports, and soon ditches his current friends, for more active ones. Peter and the guys are upset at how Joe is acting and decide to teach him a lesson.
Peter convinces Brian to move in with his girlfriend Jillian and Stewie tags along to help pay the rent but he tries to interfere with their relationship. Meanwhile Meg and Chris get jobs at the convenience store where Chris befriends the manager Carl who leaves Meg to do all the work. Carl soon fires her and promotes Chris to the co-boss.
Peter retells the story of Star Wars in this hour-long episode of Family Guy. When Princess Leia is captured by the evil Darth Vader the droids C-3PO and R2-D2 escape to the planet Tatooine to find help from the Rebel Alliance. There they encounter Luke Skywalker, Han Solo, Chewbacca and Obi-Wan Kenobi who infiltrate the Death Star then rescue the captive princess from the Death Star and return to aid the Rebellion in its fight against the Galactic Empire.