King Arthur And The Knights Of Justice - 2x08 The Island

Merlin dreams that he is attacked by the monster of Fear Island, the one place where his magic cannot function and where Tone's key is. He sends the Knights of Justice there with the warning that the creature's hideous appearance will disintegrate any who view it and they must use all their resources and wits to be the first to survive the isle. Seeing them setting off and guessing why, the Warlords attack as expected from sea and are repelled - but only because they held back to attack them again on the island, intending to destroy them before the reach the beast's castle. The knights make it through, but the danger within is so strong even the magic they call upon in battle is limited...