Merlin: The Return (2000)

Merlin employs ancient magic from Stonehenge to shield the Round Table knights, inadvertently placing them in suspended animation. Meanwhile, Morgana and her son Mordred are exiled to a different realm for 1,500 years. Fast forward to the 20th century, when a scientist uncovers a portal that leads back to Arthur's time. With Morgana and Mordred returning, they plot to dominate Camelot, threatening the legendary king and his realm. The fate of Arthur’s kingdom hangs in the balance as the past collides with the present.