Tony comes closer to discovering what Steve is doing, while Fiona makes a new friend. In the meantime, Lip helps Ian look for his father.

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.

As Sheila conquers her agoraphobia, a worried Frank finds a new financial plan in fellow bar patron Dottie, whose declining health and city pension make her an ideal match; Fiona juggles her job, the kids and her burgeoning love life, and Jasmine tries to help by setting up Fiona with a sugar daddy; Veronica takes some old folks from the home on an excursion; Lip worries about Karen's growing relationship with Jody; Ian tries to land a recently released Mickey a job at the Kash and Grab; Debbie wants her own room; Carl moves into the van.

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.

Lip tries to get back in Karen's good graces by crafting a prenuptial agreement for her and Jody, while Ian continues to give Lip the silent treatment; Frank wants to kick Grammy out but Fiona resists until the basement meth lab explodes; Fiona is invited on a boat trip but doesn't realize Steve and his girlfriend are also attending.