Arthuriana

Queen Guenevere has fallen in love with Lancelot. They spend more time together after her husband King Arthur, trusting him as friend and champion and best knight of the Round Table, instructs him to be the personal bodyguard for his wife. Lancelot and Guenevere are constantly together, attending court and government events and other state affairs which require Guenevere to travel across England with her entourage while guarded by Lancelot. The first time they have sex is during a visit to Cameliard, Guenevere's father's old kingdom and hometown. Guenevere now owns the castle she grew up in after her father died. Afterward, Lancelot and Guenevere, trying to keep their love and sexual relations a secret, have sex in numerous hidden places - the cave of the Dragon, the forest, a far away waterfall, and Lancelot's own castle Joyous Gard. Meanwhile, Morgana Le Fay, knowing that the affair is taking place, begins to execute her plan to take over Camelot.

She uses her dark powers to empower her knights of the Crescent so they could be ready for a battle against the Knights of the Round Table when the time comes. Merlin can see what Morgana is doing and confronts her at her own Castle of Night. During their own battle of sorcerers, Morgana entraps him in a crystal. Morgana laughs in her triumph. Morgana appears to Sir Agravain, who has always been jealous of Lancelot. She tells him where to find Lancelot and Guenevere having sex. It is in an inn at the edge of town. Sir Agravain goes there with a group of knights and break into the room. They put Lancelot and Queen Guenevere under arrest.