Having her handbag stolen proves to be a blessing for Fiona when a handsome stranger named Steve comes to her rescue. Lip is shocked to discover Ian could be gay and decides his brother should pay a visit to the ever-accommodating Karen Jackson down the block. But the sudden arrival of her furious father Eddie ensures Ian's already-slim chances of happiness with Karen take a severe blow. Meanwhile, Steve buys Fiona a romantic gift, but for some reason she's less than impressed with it.

Monica comes back when Frank needs her to sign documents and decides to take Liam with her. Meanwhile, Steve and Fiona move together.

Steve tries to convince Fiona to skip town with him now that his true livelihood as been discovered; Frank and Karen's secret is revealed, forcing Frank to go into hiding; Fiona tries to figure out how to get Lip and Ian out of jail after their arrest for car theft.

Fiona spends her summer with a new guy and bartending, while Debbie runs a daycare at their home. Meanwhile, Kevin realizes his extended weed-growing left him with a huge electrical bill and Frank borrows his youngest son Liam to help him pay a debt.

Fiona deals with the consequences of sleeping with Craig when his angry wife shows up at the door; Debbie develops a stress-rash and Fiona wonders if she's putting too much responsibility on the kids; Sheila has made it all the way to the hair salon and Frank realizes his days in the Jackson household are numbered; no longer having sex with Karen, Lip tries to dig up dirt on Jody; Ian continues on the path to West Point; Carl house-sits with his friend, Little Hank; Ethel meets Malik, a boy on Kevin's youth basketball team.

It's a typical Gallagher nontraditional Thanksgiving that includes a suicide attempt by Monica, Carl shooting a bald eagle, and Karen going into labor; Steve agrees to allow Estefania's boyfriend to steal his identity; Ian sleeps with a businessman named Ned; Frank tries to get his share of his mother's money from his brother Clayton.

Frank wakes up in a place completely foreign to him.

Fiona starts a new office job but has a hard time fitting in with the corporate culture. In an attempt to get medical coverage, Frank inadvertently becomes involved in the gay rights movement where he meets Abraham Paige, a powerful activist.

Fiona and the family prepare a surprise high school,graduation party for Lip. Frank wins a bet and uses the winnings to take Lip out for lobster and some quality father/son time.

Carl connects with a girl in detention; Lip and Amanda grow closer; Sheila returns with big plans; Fiona searches for a job; Mickey spends time with Ian.

Fiona gets out of jail. Frank is feeling like his old self.

Election day puts Frank and Fiona in a head to head battle as they each try to round up votes for their candidates. Lip has to make an important choice about Xan’s future. Debbie gets in over her head with Alex. Carl’s killer instinct is put to the test. With his trial looming, Ian struggles to decide how to plead. 100th episode!