Buddy & Cookie's hot air balloon gets thrashed by a violent thunder storm and they ended up landing on foreign grounds. The town Buddy & Cookie are in is called "Sourtown". The residents are always in a bad mood due to them drinking and eating sour products and due to the strict laws which outlaws laughter, dancing, singing, and jazz. Buddy doesn't take the laws seriously as he tries to play some jazz to lighten everyones mood. Unfortunately the king of Sourtown doesn't take law breakers likely.