A blast from the past shakes up Fiona's view of her life. Frank gets involved with Liam's school and becomes the most popular dad in the PTA. Lip learns getting laid is harder than anticipated when sober. Ian crosses a boundary with a kid from the youth center. Kev and V take a trip to meet his birth family.

As Fiona tries to raise the profile of the neighborhood, Ian helps Trevor to raise money for a new youth shelter. Meanwhile, Carl loses his scholarship and gets creative with securing the tuition, Lip stands up to a friend and gets hurt and Frank teaches the parents at Liam's school all about the working class.

Frank’s latest sexual escapades get him into trouble with the Hopkins Academy PTA. Fiona struggles with her decision to bail Ian out of jail, while he continues his Gay Jesus antics inside. Lip juggles taking care of Xan with a potential romance. Debbie fights for equal pay at work, and Carl has to prove himself at military school. Kev and V have trouble with the twins without Svetlana.