Season 1 Episode 19 - Altered States

Xena is teaching Gabrielle how to catch fish with her bare hands in the pool at the foot of a waterfall, when a young boy runs out of the woods pursued by a gang of men. She rescues the boy and defeats the gang and discovers that the boy is on the run because his father believes he has to sacrifice his son to his god. Xena can't believe that a father would really kill his son, and proceeds to investigate, but finds that it appears to be true. After several scuffles with the gang of zealots, Xena discovers that the father has been drugged after Gabrielle becomes delirious having eaten some bread intended for the boy.

Meantime the boy is recaptured by the zealots and Xena is in a race against time to stop the sacrifice, but she manages to and realises that it isn't the father who was behind it after all. It was his brother though jealousy.