Frank's newfound appreciation freaks the Gallaghers out.

Frank teaches Debbie how to work the system. Kev and Veronica visit Yanis.

Fiona confronts Patrick. Ian makes a discovery at the firehouse.

Frank helps Erica as Debbie ups her game. Lip tries to protect Helene.

Ian and Caleb get serious. Lip appears before a disciplinary committee.

Carl remakes the Gallagher home as his "crib." Debbie gets let go.

Sean catches Will with one of Carl's guns and Fiona bears the brunt.

Fiona tries to make amends with Sean. Debbie and Queenie trek to a commune.

Sean moves into the Gallagher house as Fiona plans a traditional wedding.

A confrontation between Sean and Frank quickly descends into a brawl.

It's wedding day and Frank shows up uninvited - and high.