Once all the KND are back to normal, they have decided their next course of action will be catching all the hamsters to repower the treehouse (as Count Spankulot has released them while Numbuh 4 is fighting the other KND members). Unfortunately chasing the hamsters tires them out, except for Numbuh 3, who thinks this as a game. So Numbuh 3 is assigned to catch all the hamsters throughout the treehouse and restart the power core.