By being the only person able to draw a sword from an anvil on a block of marble, a young boy proves himself to be the successor to the throne of all Britain.

Lancelot is welcomed into the court of King Arthur as a valiant fighter and later rescues Queen Guinevere, fights the tournament at Astolat, and pursues other adventures.

Britain has no king and everyone is fighting each other. Merlin the magician decides to hold a tournament to find a new king. Who will be able to pull the sword from the stone?