Plot summary
Xena and Gabrielle lure Autolycus into a fake theft, then recruit him to recover a stolen chest containing an immensely powerful weapon. The warlord Malthus intends to auction it. Appealing to the thief's pride wins his help.
Autolycus travels to the island sale disguised as the assassin Sinteres, with Xena posing as his companion. The identity creates immediate danger when another guest recognizes the name of the man who killed his brother. They survive the confrontation and continue into Malthus' castle.
During the banquet, Xena creates a diversion while Autolycus copies the hall key. Their attempted theft instead reveals Malthus murdered and the chest missing. The ship is sent away to prevent anyone leaving. Finding the chest planted in their own room, they conceal it from the guards, then return it so that the auction can proceed and a route off the island may reopen.
The real Sinteres arrives with Gabrielle as his prisoner, exposing both disguises. Xena and Autolycus escape briefly, but must return when Sinteres and the lieutenant Arkel threaten Gabrielle and the other captives.
Xena defeats Sinteres in hand-to-hand combat. Autolycus joins her against the guards. Arkel opens the chest, releasing a destructive light. Remembering its warning not to fear the truth, Xena tells her friends to stand still. Arkel and the guards flee and are consumed, while the three remain unharmed.
They return the chest to Kelton's people, who can keep it safely. Autolycus accepts a reward but secretly leaves it behind. Gabrielle realizes that the apparently mercenary thief is capable of generosity as well as elaborate boasts.
Credits
Adapted from Legendary Journeys Wiki contributors, The Royal Couple of Thieves. Complete episode narrative, rewritten and condensed for clarity; causal developments and the episode's ending retained. Illustrations, dialogue quotations and non-story metadata omitted.