S4, EP8 "Revelations"
Paddy is shaken when he discovers that his three ex-cellmates have been murdered; Norma and Monica makes plans to travel; Carl tries to reunite Monica and Frank.
S4, EP7 "Terrorist Target"
The family fears that Chatsworth is a terrorist target; Frank tells Monica that she wasn't his first choice.
S4, EP6 "Dangerous Situation"
Carl wants to get rid of Norma, but she proves to be a tough adversary; Shane's ice cream truck is actually a cover for drug dealing.
S4, EP5 "Boys, Boys, Boys"
Monica urges Debbie to find a boyfriend: Ian catches the eye of someone he least expected; Frank is forced to move back in with his kids.
S4, EP4 "The Runaway"
Ian falls for a runaway with excess baggage; Mimi believes the family may be cursed; Jamie and Karen try to outdo each other in the fun run.
S4, EP3 "You Decide"
Frank struggles with telling Sheila that he cheated on her with his ex-wife; Lip and Ian make a grisly discovery.
S4, EP2 "New Romances"
Frank struggles to stop Monica from telling Sheila that they're still married; Sheila sets about reuniting Monica with her estranged lover Norma.
S4, EP1 "New Beginnings"
Lip turns 18 and is told what is expected of him by the Maguires; Debbie tries to get her mother out of the house.