The search for the Holy Grail led the noble knights of the Round Table to the terrible Giant, who was accidentally summoned by Merlin. King Arthur boldly led his knights into battle, but the monster was stronger and defeated them. The defenders of the kingdom were defeated, and the legendary sword Excalibur was broken. Merlin used a powerful spell to send the Giant back to the astral world from which he came. But, unfortunately, the spell did not work as the wizard expected, and the entire kingdom was sucked into the astral sphere.