Episode 1 (S04E01)

The Gallaghers are back for their fourth season, and it's a big day for Lip as he turns 18. However, things won't go as smoothly as he hopes. The Maguires have a favor they want him to fulfill, adding to his stress. The most shocking twist comes when his estranged mother, Monica, unexpectedly reappears, bringing news that could completely upheave their lives.