The boys' plane crashes and they all meet each other/are introduced to the reader. The conch is used to call all the boys together. At first, the boys are grateful they get a break from the adults and are allowed freedom on the island.
Ralph and Jack start to fight to become the chief of the boys. Ralph tries to establish order, but Jack just wants to hunt. Most boys want to stick with Jack because they believe he can protect them and bring food.
The Lord of the Flies appears and tells Simon the truth about what's happened. The rest of the boys, however, are in sort of trance while they do a dance around a fire. When Simon tries to tell the other boys about the true "beast," they beat him to death.
Roger kills Piggy when all the boys are fighting each other. He rolls a boulder down and hits Piggy, where he falls to his death. This represents civility being destroyed.
Jack and the rest of the boys set the forest on fire in an attempt to find Ralph. Ralph has realized that humanity has been taken over by the true evil. This true evil is human nature's need for survival.
A naval officer finds the boys because of the fire. All of them cry because they've started to realize what they've become. They realize that their civility has disappeared, and seeing someone from their old lives snapped them back to reality.