S1·E9 The Battle of Bardon Pass
Aired June 3, 2011
Synopsis
Morgan makes her escape, leaving a puzzled Igraine believing she is going mad until Merlin explains Morgan's deception. They go to Castle Pendragon to confront her but end up as her prisoners. Leontes, now aware of his wife's infidelity, prepares to depart Camelot but joins Arthur and the knights in defending Bardon Pass.