Errol's paternal grandmother Joan is hosting a family lunch and Sam ropes Andy into coming along for moral support. Unfortunately it's just as Errol's 'cool uncle' Rex arrives home on holiday, and Andy embarks on a competition to win Errol's sole affections. Sam and Ben hit a snag in their custody battle, someone's got a crush on Errol, and Andy doesn't know how to deal with Joan after she reminds him of 'that night'. The scene is set for a delightfully tense day at grandmother's house.

While Sam is away on a tree-hugging retreat, Andy and Errol are offered the opportunity of a lifetime - to sign with Rage Records and infamous music producer Mo Kahn. Little does Andy know that Mo is only interested in the kid and Errol hasn't worked out how to break the bad news. When a series of seemingly innocuous events puts Errol in mortal danger and the whole custody case in dire jeopardy, can irresponsible screw-up Andy finally make it right?