The Broca Divide
S1, E4: O'Neill and his team land on planet P3X97, which has a light and a dark side; the inhabitants of the light side are on a Bronze Age level of culture, while a kind of brutal prehistoric man lives on the dark side.

S1, E4: O'Neill and his team land on planet P3X97, which has a light and a dark side; the inhabitants of the light side are on a Bronze Age level of culture, while a kind of brutal prehistoric man lives on the dark side.