Jake's mom is catering for a huge, high profile wedding but it's nearly ruined when gremlins run amok in the hotel. It's Jake's fault and he must get Grandpa to save the day by singing the hula song to lull the gremlins to sleep.
Jake hears that a corrupt wizard is holding a beauty competition which may be a front for something evil. Going incognito, Fu enters the contest and wins -- the prize is to be the wizard's bride.
Jake learns his grandfather was a super agent.