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In the conclusion of the four-part story "The Crusade," the Doctor and his companions are still trying to figure out a way to return to the TARDIS and escape the intrigues of the Holy Crusades. Barbara has a fateful meeting with the legendary Knight of Jaffa, which takes an unexpected turn. Both Richard the Lionhearted (Julian Glover) and Prince Saladin (Bernard Kay) step up their efforts to secure the Doctor's cooperation in winning the conflict. Written by David Whitaker, "The Warlords" originally aired April 18, 1965. At present, only the soundtrack of this episode is known to survive.