A band of outlaw Knight Templars are turned into gargoyles after being cursed by a strong spell. To break the curse, they have to defeat a wizard who can control fire-breathing dragons.

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.

In 5th century Britain, a young Merlin has to use his magical powers to stop his former friend, Vendiger, from using dragons to overpower the kingdom.