Sheila fights for custody of the Native American kids and clashes with Sammi. Fiona gets sprung from jail and lands a job with the help of her parole officer. And Frank begins to feel like his old, troubled self.
Fiona is hauled away to a correctional facility as Frank wakes up from his operation. Ian crashes Mickey's son's christening, Amanda's parents bribe Lip to stay away. Oh, and DCFS makes an unexpected visit.
The Gallaghers grapple with the loss of one of their own. As Lip takes steps to improve his future, Debbie, Carl, and Liam get roped into Frank's new scheme. Meanwhile, Kev and V get their revenge on Svetlana.
A traditional Gallagher family Thanksgiving includes a suicide attempt by Monica, Carl shooting a bald eagle, a case of willing identity theft, a money grab by Frank, and Karen going into labor.
Fiona is thrown into chaos by the return of Jimmy/Jack/Steve. Ian steals Mickey and Svetlana's baby and takes him on a road trip. Plus, a vengeful Sammi takes over the Gallagher house, and Veronica decides to separate from Kevin.
Lip is graduating from high school, so Fiona and the family prepare a surprise party for him. Frank wins a bet and uses the winnings to take out Lip for lobster and some quality father/son time.
Frank and Monica have an interesting proposal for the kids. Lip buckles under pressure from Debbie to get his sobriety under control. Meanwhile, Fiona sees a business opportunity as Kev and V attempt to start a new chapter.
Fiona's bad decisions involving Robbie finally boil over. Frank and Sammi continue their pursuit of curing his liver trouble. Lip gets a surprise visit at college from Army investigators.
Frank plays tour guide for his terminally ill doctor, Bianca. Fiona preps Carl for his sentencing hearing. Plus, Lip sleeps with a professor, Ian realizes it's time to get back on meds, and Kev finds himself the campus 'rapewalker.'
Fiona takes a DIY approach to renovating the laundromat. Lip agrees to go before the school board in hopes of getting reinstated. Meanwhile, Kev's trust in Svetlana wanes even further when the titty van goes missing.