Wiglaf and his friends Angus and Erica find themselves teamed with the obnoxious Bragwort to represent the Dragon Slayers' Academy in an unevenly matched contest at the All-Schools Brain-Power Tournament.
When the headmaster of the Dragon Slayers' Academy hears that Princess Belcheena will pay the matchmaker who finds her a husband, he decides that Wiglaf is the perfect candidate.
Wiglaf faces the double embarrassment of having his wacky parents visit Dragon Slayers' Academy on Parents Day and starring in the school play as the brave but small knight, Sir Tinybottom.
After accidentally killing a dragon, Wiglaf hopes his friends at Dragon Slayers' Academy will be able to help him prove himself a hero when he faces that dragon's mother, Seetha, the Beast of the East.