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 wins a contest that brings Sir Lancelot to the Dragon Slayers' Academy for a day, but when Wiglaf's friend Erica suspects that Lancelot is not who he claims to be, trouble ensues.
Wiglaf joins the other students of Dragon Slayers' Academy in searching the Dark Forest for the Cave of Doom, which supposedly contains the gold of the dead dragon Seetha.
Upon superstitious headmaster Mordred's orders, the returning students and new lasses of Dragon Slayers' Academy deck themselves in lucky charms on Friday the thirteenth, but luck may not help when a wicked dragon arrives seeking revenge.
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.
A ransom note received at Dragon Slayers' Academy sends Wiglaf and Angus to the rescue of the supposed victims but upon arriving at Keep Away Mountain Cave, they discover that an elaborate prank has put them in danger.