Terence Maynard

With Camelot lost, Merlin goes to great lengths to restore Arthur's self-belief.

Arthur and Merlin must run for their lives as a merciless Morgana attacks Camelot.

Morgana finds a powerful ally in the warlord Helios. Together they hatch the perfect plan to force Camelot to its knees.

When a mother and father are held hostage by a ruthless mob boss, Eric works with the hostages' children in order to save their parents' lives. As the team looks into the family's history, they discover a mysterious past which complicates the negotiation and endangers all their lives.

A flesh-eating fungus that turns its victims into human shells proves to be a most dangerous adversary to the team.