Knights and Kightresses - S1.E6

When no one joins Princess Flame's League of Kingtresses, she gets Flicker to dress up as a girl, alias Sir Dolores. The league is so successful that the Knights of the Square Table have little to do and decide to take early retirement. Unfortunately, their departure coincides with the arrival of Geoffrey and a mod of Barbarians who siege Camelhot and kidnap Sir Dolores.