The first part of the film simply introduces the titular furry greenish-blue extraterrestrial Muzzy (Jack May), King Nigel (Willie Rushton) and Queen Erza (Miriam Margolyes) of Gondoland, their daughter Princess Sylvia (Susan Sheridan), Bob the gardener (Derek Griffiths) and evil scientist Corvax (Derek Griffiths), along with their personalities. It is not until later that the actual story gets going. When it does, Bob is sweeping the garden, when Corvax calls him over to count how many trees and bushes there are. By the time Bob has counted the number of flowers, the beautiful Princess Sylvia has beckoned Bob over, and the two decide to elope as they are in love. However, Corvax also loves Sylvia, and when he sees what is happening, he immediately rushes to inform the King and Queen. Furious, the King decides they should track the two down by helicopter and catch them. This they do, and when they catch Bob and Sylvia, the latter is taken back to the palace while the former is taken away to jail by the King's soldiers. At cell number 19, Bob meets Muzzy who informs him that he has been jailed for eating parking meters in the town square. (He eats metallic and other indigestible objects, with his favorite food being clocks.)...