Granny Yak has a new boyfriend - Chatterbox Ox, but Yakkity is suspicious, and Professor Crazyhair tries to win back Granny's affections.

When the popular game show ""Who Wants to Win a Bunch of Money?"" comes to the town of Onion Falls it seems like the perfect oppurtunity for straight-A student Keo to use his knowledge to win some cash. Unfortunately, Keo is terrified of appearing on television. Keo's best friend, aspiring stand-up comedian Yakkity, dreams of being on TV and becoming famous so the two decide to team-up by having Yakkity go on the show with Keo hiding in his hat. Yakkity becomes a sensation but Keo doesn't like it when people start to think that Yakkity is smarter than he is.

Yakkity and Keo come up with their very own sport and name it Yakeo which becomes popular with everyone except football jock Rondo.