It starts off as Lord Oniro, his monster Hammerstein, and his Blue Ghouls kill a baker known as Baker John. Wallace, Gromit, and Fluffles have to solve the case. They then team up with the Myth Rangers and go to defeat Lord Oniro. They get past his guards and fight him. But in a last ditch effort, Lord Oniro grows Hammerstein into a giant and the rangers form the Thunder Megazord and kill him with the Thunder Saber.