A group of boys in a plane suddenly crash on a deserted island. All of the adults are killed in the crashing, leaving only children behind. Thrusting civilized children into the wild and exploring the consequences represents the premise of Lord of the Flies.
The shadow of social conventions remains as the boys partake in a seemingly democratic process, establishing rules that are enforceable because everyone agrees to be bound by them, and naming Ralph as the leader with Jack as the head of the hunters.
Jack, unsatisfied with his current amount of power and standing in the group, contests Ralph for his position. The social situation deteriorates when Jack loses the vote and breaks off to form his own group.