Cockroaches - Season 1 Episode 2

Having bested Oscar Tom enjoys being the group's new leader until discovers the fights to the death for cereals and the resultant cannibalism, condoned by a strange doctor. Suze however becomes very popular, both as the tribe's school-teacher and as a heroine when she kills a bunch of marauders. She also suggests that to end the power struggle between Tom and Oscar the group should be ruled by committee.