A group of fugitive Knights Templar attacks a pirate ship and they are cursed to turn into hideous monsters. To fight the curse and ultimately save the world, they must defeat the wizard-dragon who is determined to destroy it.

In this present day prequel, the robot invaders attack the Earth, forcing a small band of humans to seek refuge below the surface of the planet.

An army of dragons invade the crippled English countryside and the apprentice wizard Merlin must confront the fire-breathing beasts.