Josh, Tom, and their new roommate Patrick go out dancing. Josh has a new baby sister and Josh agrees to babysit. When Dad and Mae pick her up, the house is full: Niamh is visiting Tom, Patrick has a boy around, and Mum arrives, in a manic state.
Mum is admitted into a private hospital, and struggles to accept her fate. Patrick has a party. Mum leaves the hospital and goes to find Josh. When Josh takes her back he meets her fellow patients, Hannah and Ginger.
Patrick dumps Josh. Josh, to distract himself, takes Mum and her friends to the zoo. Tom and Jenny have a weird rabbit funeral and break up, again. At the zoo, Arnold kisses Josh. Dad tells Josh he’s cutting him off financially.
Claire is staying with Tom, Josh and Patrick. Josh asks Dad for money to pay the plumber and gets lectured about getting a job. Mum and Ginger have a fight. The housemates go to see Jenny in a school production.
Claire declares she’s coming home. Niamh finds out about Jenny and Jenny dumps Tom. Patrick and Josh get stuck in a traffic jam and Patrick kisses Josh. Tom presents Jenny with a baby rabbit and Mum discovers Stuart has a wife.
