After discovering a new cut price supermarket, Vince becomes rather keen on its own brand energy drink Blue Rat - all the energy of a rat trapped in a can. Meanwhile Errol realises one of his life ambitions of working with fish.

Inspired by the life of Gandhi, Errol decides to bring about positive change for the residents of Elderberry House. Meanwhile, Vince becomes rather taken with the icy girl from upstairs.

After ejecting a troublesome child from the swimming pool where he works, Vince is targeted by the local gang, who will stop at nothing in their quest to destroy him. Well - almost nothing.