Aidan's bad behaviour has landed him in court, but it's Patty who'll decide the outcome. Feeling unwelcome at the Gallaghers, Aiden leaves Chatsworth to find his mother, recently released from prison. Mimi is unexpectedly reunited with Billy Tutton, Cilla's father, and his return to Chatsworth causes tension between Mimi and her children. Frank takes in a Polish man as a lodger. Marty and Mickey become flatmates, and both men reveal their secrets to each other.