It’s all kicking off in Saturday’s episode of Merlin, Lancelot Du Lac! Here’s Cultfix’s 15 teasers.

1. “We all have our secrets and, unfortunately for Guinevere, I know hers… I know exactly how to destroy her!”
2. A gift from Morgause proves incredibly useful for Morgana
3. “My name is Lancelot and I am ***** to *******”
4. “You are her ***** ****… and you will be her last”
5. Lancelot should really know about that little detail!
6. Gwen should not have accepted that present…
7. Since returning from the veil, Lancelot is a shadow of his former self
8. “Chicken is good; nice broth; what do you know about necromancy?”
9. Lancelot knocks out a close friend and it’s not Arthur
10. “Adultery in noble families was punishable by death”
11. “I couldn’t stop myself. I don’t know why!”
12. “It’s Gwen who must pay the price”
13. Lancelot and Arthur come to serious blows more than once
14. Someone meets their maker
15. Remember to bring tissues because there’s no happy ending and events will have lasting consequences. And you’ll really hate Morgana and Agravaine!

It airs Saturday at 8.15pm on BBC1. Don’t miss it!