The Flies in The Sunrise

It follows the story of three children and one adult. As they navigate their way to escape on an island they were stuck in. With, each one of them doesn't know basic human survival skils. Within the group of children. With this, they soon find themselves in a dire situation. Even to the extent of killing each other - for the sake of the food they wanted to hunt since the beginning. With this, means cannibalism, will they be able to give in to the urge of killing their friends or will they stop this urge to keep for themselves?