Antony Acker

Mr Tipton is coming to visit. Rumours are rife: is he coming to give someone a big bonus, or fire someone? It's a chance to look back at the best and worst behaviour.

The boys arrange a free cruise holiday for themselves and their mother. She's delighted, but they haven't told her it's only free if she sings on board every night.

Cody helps London to produce her own online web show. Zack becomes addicted to the online web game, and doesn't realise that his fiercest opponent in cyber space is actually Moseby.

Cody gets jealous when a famous teenage Russian violinist enrols at their school and flirts with Barbara. London tries to learn the hotel business by shadowing other employees.

Zack tries to negotiate a better contract for Carey, but almost succeeds in losing her job for her. Nia and London both ask Cody to help with their science projects.

Arwin's mother moves out and the twins feel sorry for him. They invite him to dinner but afterwards he won't go home. Zack and Cody give his home a makeover to make it more attractive.