When Uncle Grandpa accidentally explodes his casserole into oblivion, it is up to him, Belly Bag, Uncle Gus, Pizza Steve, and Giant Realistic Flying Tiger, to travel back in time to make things right...to get all the missing ingredients to make another casserole. Traveling to the Moon, the '90s, Ancient Rome, Ancient Egypt, medieval times, and more, the gang WILL MAKE THAT CASSEROLE!