The heroes set out on a quest to find out who is draining colour from the forest and muster all their positivity to save it from greyness.

The heroes are lured away by a cloaked figure to compete for the title of Quester of the Year, leaving the forest with no-one to protect its scones.

To avoid Herbert's surprise visits via his tunnels in the Big Birch, the other heroes take any quest and must deal with an angry plant!