Walden is collecting leaves, and hes waiting patiently for the last leaf to fall off the Old Figgity-Fig Tree. But Wubbzy and Widget would rather play in the leaf pile. When they return, they find Walden fast asleep. And here comes that last leaf! As the wind takes it away, Wubbzy and Widget are left to chase the errant leaf all over Wuzzleburg.
On DirecTV and other cable systems, the title reads "The Very Last Leaf".
A Charlie Brown reference is used in this episode when Widget rises from the pumpkin patch, she is being the Great Pumpkin.