The arrival of a new neighbour and school teacher causes havoc among the house husbands. Gemma is accused of cheating in her final medical school exam.

Mark's world is turned upside down when his parents deliver some home truths. Gemma's new job at the hospital threatens to wreck her friendship with Abi. Lewis's distrust of Nick grows when he makes Justin a dubious business offer.

Justin's estranged brother visits in need of help. Still reeling from the death of his father, Mark makes a shocking discovery about his parents. Desperate to prove he can be a good step-dad, Nick tries some of Lewis's parenting advice.

Mark searches for his biological father and discovers a new lease on life. Justin goes to extreme lengths to help resurrect his brother's AFL career. Lewis's distrust of Nick thaws when he sees the potential in Nicks' new music business.

Nick's dark past catches up with him, threatening his relationship with Rachel and the house husbands. Lewis struggles to cope with Gemma's career success. Abi and Gemma are determined to beat their husbands in a parents' talent quest.

Gemma's new medical career is threatened by a sexist supervisor. Nick's happiness with Rachel is threatened by his secret gambling past. After offending his friends and family, Lewis tries to take a more relaxed approach to life.

Nick hits rock bottom when he loses his relationship, his home and his job. Abi and Gemma volunteer to teach sex education at the school, with disastrous results. Rachel relies on Abi and Gemma to deal with her pregnancy.

Justin's planned family holiday to Disneyland is in disarray when his wayward brother Rafiq returns. When Rafiq faces criminal charges, Gemma and Abi are determined to prove his innocence.

Nick faces a relationship dilemma when Izzy admits her attraction to him. The house husbands devise the perfect heist to retrieve Izzy's stolen motorbike. With his AFL career in tatters, Justin's kids help Rafiq find a new goal in life.

Gemma is torn between family and career when she wins a prestigious scholarship to the USA. Lewis becomes public enemy number one when it's announced the local school is to be closed.

Lewis devises a risky plan to save the school from closure, and win back the trust of his friends. Mark and Abi's daughter is injured when the kids protest to save their school from demolition.