Don’t read if you haven’t seen the episode
Morgana prepares to wage war on Arthur and Camelot. But before doing so, she wanted to eliminate her biggest threat, Emyrs. Morgana acquired a creature called Gean Canach. It is said that the creature was created from the tear of Earth Mother Nemaine. It has the power to strip a sorcerer or sorceress of their power. Morgana tested it with one of her allies named Ari. When it worked and all of Ari’s magic was gone, Morgana ordered one of Saxons to sneak in to Camelot and bring near Merlin. The creature was waiting for Merlin in his room and was able to successfully drain him of his magic. Good thing Gauis was there to save the Merlin and killed the creature with a shovel. Merlin realizes that his magic was gone. Gauis and Merlin learned that there is a chance to retrieve his magic by going to the Crystal Cave located in the Valley of the Kings .
Later on Morgana started the siege on Stawell Garrison north of Camelot. Morgana and Mordred teamed up and use a spell that created something that looks like a burning meteorite falling from the sky. The Lone survivor from the Garrison is Eira. Later it is revealed that Gwaine’s lover, Eira, is as a spy for Morgana and has got vital information on Camelot’s plans against Morgana’s Hordes. She also informed Gwaine taking Merlin to the Valley of the Kings . Mordred then informs Morgana about the Crystal Cave being the origin of Magic. Morgana then went to the Crystal Cave and trapped Merlin inside. Arthur and the other Knights were in Camlann and were waiting for Morgana’s troops. Mordred has found a secret route to enable them to flank Arthur.
Merlin was awakened by the spirit of his father, Balinor. He informed him that he could regain his magic by Believing in himself. Merlin eventually regained his Magic. He saw visions inside the cave and using magic he informs Arthur of Morgana’s plan to flank them.
Back in Camlann Arthur and his men are outnumbered by five to one. Arthur ordered Gwaine and Percival to meet the group who plans to flank them. Arthur is with Leon and they faced the rest of Morgana’s troops. Mordred is the battlefield as well with the sword forged by Aithusa while Morgana was just watching on top of a Cliff. The entrance of Crystal Cave is blewn apart by Magic and Dragoon the Great appears.
I enjoyed watching this episode. Although there are some parts that I didn’t like. The Tavern scene at the beginning of the episode is unnecessary. The way Merlin got back his magic was way too easy. He just slept in the cave and then he regains it. It should have been a full episode and should have put in the series instead for the Gwen Arc. Remember the part when she was under Morgana’s spell? Morgana could have killed Merlin but instead she took the chance of trapping him and keeping him alive. So it is expected that Morgana and Merlin would face off with Merlin disguised as Dragoon the great. I think it might have been better if Merlin fights without disguise. I would expect that the Kilgarrah - Aithusa will be in next episode? Will it even happen?
With only one episode left, I hope they fill everything in. The answers the fans are waiting for and I really hope they end the series well.