A violent meth dealer threatens the Gallaghers, forcing Ian, Carl, Lip and Debbie to find a way to pay him off without involving Fiona. Fiona battles it out with a vindictive tenant. Lip cares for a down-and-out Professor Youens. Frank - miraculously - attains something resembling sainthood.
The Gallaghers find themselves with money to burn as Carl sells their inheritance from Monica. Fiona swears off random hookups to focus on her new apartment building. Lip deals with the sacrifice that comes with sobriety. Frank emerges out of a meth-induced haze to make amends for decades of depravity.