In the Season 3 premiere, Fiona adapts to living with Jimmy; Frank awakens in a strange place; and Lip gets sentenced to community service. Meanwhile, Jody and Sheila are losing sleep over Baby Hymie's nocturnal restlessness.
Fiona has second thoughts about loaning money to Meg; and a drunken Frank staggers home, where no one wants him, until he proves to be the only one who can quiet fussy Baby Hymie. Meanwhile, Lip's community-service encounter with a North Side youth group gives him a moneymaking idea, while Kev's wife returns with her son Kyle and Frank puts in a call to child services.
Frank works a scam on a cancer foundation; and Fiona is shocked to learn what she must do for a job as a grocery-store cashier and teams with Veronica to get back at the manager. Meanwhile, crusader Lip hunts down sex offenders in the neighborhood.
Carl heads to cancer camp, where the facility's activities leave a lot to be desired, while Frank goes on babysitting duty and Sheila plans to introduce Jody to "toy time." Later, Fiona rallies coworkers against the boss; Lip and Mandy rescue her half sister from foster care; and Jimmy gets bad news about his parents.
Frank has a major problem on his hands when the city announces it will be doing work on the main sewer and they'll be digging up his yard, where Aunt Ginger's remains are located. Meanwhile, Fiona's boss finds her work unsatisfactory; Molly uncovers a startling secret; and Ned wants Ian to break into his wife's house.
The Department of Family Services takes away the Gallagher children, and Fiona is desperate to get them back, so much so that she must round up Frank, get him to act responsibly and make a court appearance. Meanwhile, Kev and Veronica decide to use her mother as a surrogate; and Terry catches Mickey and Ian in flagrante.
Fiona makes a fateful decision about the future of her and her siblings, and recruits Lip for a plan to forge Aunt Ginger's will, but first they need a dead body. Meanwhile, Carl and Debbie deal with life in their foster homes; Frank sobers up in preparation for a court date; and Timmy Wong and his mother come to Sheila's for Hymie.
At the gathering for Aunt Ginger's fake funeral, the family meet Frank's wily cousin Patrick, who might just be devious enough to "out-Gallagher" the Gallaghers.
Fiona has a difficult time dealing with the corporate culture in her new office job, while Frank, needing medical coverage, somehow gets mixed up in a gay-rights event, where he rubs elbows with a powerful activist.
Just when Fiona has settled into her job and found some structure to her life, Jimmy drops a bomb on her, while Frank revels in being the face of the gay-rights movement, and sees a way to make even more money out of his newfound celebrity.
Fiona takes the kids camping, while homeless Frank tries to get Carl to sneak him into the Gallagher van for the night.
In the Season 3 finale, Fiona and the family throw a surprise party for Lip's high-school graduation; and Frank uses his gambling winnings to take Lip out for a nice dad-lad dinner.