The day of Frank's wedding to Sheila draws near, but he begins to get cold feet when he learns the fate of her first husband, Sheldon. Veronica and Kev are forced to intervene when it looks like the wedding could be off. But Frank must decide whether he loves Shelia enough to deal with her dark secrets. Meanwhile, Lip is determined not to end up like his father when he begins neglecting Mandy and Katie, forcing him to make a huge commitment to them both.