5. Three Boys

While preparing for her wedding, Veronica questions why Kevin is proposing to her. Kevin finally reveals that he is separated but still legally married to his estranged abusive wife. Realizing they will not be able to get legally married, they debate over a new strategy to hold off suspicion from Veronica's mother Carol.

To help Kevin and Veronica, the Gallagher family and friends continue with the plans for the wedding: Lip, Ian, and Carl manage to entrap a pedophile priest into officiating a false ceremony; Fiona organizes an impromptu bachelorette party for Veronica; Steve takes charge of the wedding cake; and Sheila offers to make Veronica's wedding dress. However, things spiral out of control when Veronica's pyromaniac brother Marty breaks out of prison to attend the wedding. Meanwhile, Frank attends a clinic, where a doctor is surprised by Frank having three lumps in his scrotum; Frank is forced to get a biopsy as it could be a precedent for cancer. Astonished by the possible diagnosis, Frank seeks solace by joining a cancer support group.

With his wife Linda out of town, Kash decides to invite Ian over to his house to have sex. However, Ian feels uncomfortable upon seeing images of Kash's family and decides to leave. Fearing that Marty may cause trouble at the wedding, Veronica and Fiona drug him and handcuff him to the toilet. Sheila prepares to attend the wedding with Frank and Karen but is unable to leave the house, experiencing a panic attack before opening the door. The false wedding goes as planned, and Carol surprises her daughter by giving her a $500 check. Having learned that he is not diagnosed with cancer, Frank makes a toast to Veronica and Kevin. While the Gallaghers join for a family photo, Lip has sex with Karen in a bathroom stall. Next to them, Marty, having released himself, prepares to roast toilet paper.