In a castle surrounded by water, Jerry is seen holding a stack of cheese on a saucer, escaping from Tom dressed in knight armor who is mercilessly attempting to eliminate Jerry with a mace. Tom, tries to scour the castle to see where Jerry has hidden. Keeping his stance next to a replica of a knight, holding an axe, Jerry takes a tiny peek through the helmet. He then, back down when Tom finally discovers where Jerry was. With that, Tom pounds the living daylights out the deceived replica. Luckily, Jerry cowered underneath the shoes, makes his escape and ducks into a hole. Then, the king gives Tom a job: to slay the dragon that lives in the cave. However, when Tom arrives, Jerry has awakened the dragon. It swallows Tom, but he manages to steal the fire from the dragon. Tom scares the dragon out of the cave, and chases Jerry and swallows him. But later, Jerry steals the fire from Tom and returns it to the dragon, who then chases the cat.