Dad has accidentally invited the 'wrong tony' to dinner.

On Dad's annual hinge-oiling evening he accidentally spills oil on Mum's carpet prompting a race against time to clean it before she finds out. Weird neighbour Jim calls round with his new cat, Watson.

When Adam reveals to his family that his musical talents have been recognized, Jonny announces that he's got married.

Adam has been staying at Jackie and Martin's all week, and has settled in rather well, largely due to Jackie fawning over him. Elsewhere, Jim passes his driving test, and a mishap leads Adam and Jonny locked out of Adam's car half naked.

The boys arrive home to find a 'For Sale' sign in front of the house. How will they stop Mum and Dad from selling the family home?