When Merlin falls into Morgana's hands, he becomes a deadly weapon in her fight for supremacy. Using ancient magic, she pits friend against friend to create the perfect assassin. An oblivious Arthur is in great danger. Will anyone notice Merlin's unusual behaviour before he does the king some serious harm?
Episode rating
Cast of episode
- 90
- 6
- 2
- 2
- Merlin
- Arthur
- Morgana
- Gaius
- Gwen
- Sir Leon
- The Dragon
- Sir Percival
- Sir Gwaine
- Sir Elyan
- Agravaine
- George
- Audrey
- Mercenary