The Legend of Prince Valiant - Season 2 Episode 10
The Traitor

Sir Lymond sends word to Arthur that the northern Venicone tribe has finally agreed to negotiate a trade agreement with Camelot. Sir Gawain and the trio are then sent north to help Lymond prepare for the king and queens arrival. While there, our heroes begin to suspect that the Venicones actually have hostile intentions. Some undercover spying in the Venicone camp is required in order to gather enough evidence to warn Arthur of the danger he may be in.