In the prologue, told through photographs, a group of schoolboys are evacuated from
England following the outbreak of an unidentified war. Their aircraft is shot down by a briefly-glimpsed fighter plane and ditches near a remote island. The main character, Ralph, is seen walking through a tropical forest. He meets a chubby, bespectacled boy who reveals his school nickname was Piggy but asks that Ralph not repeat that. The two go to the beach where they find a
conch seashell, which Ralph blows to rally the other survivors. As they emerge from the jungle, it becomes clear that no adults have escaped the crash. Singing is then heard and a small column of school choirboys, wearing dark cloaks and hats and led by a boy named Jack Merridew, walk towards the other survivors. The boys decide to appoint a chief. The vote goes to Ralph, not Jack. Initially, Ralph is able to steer the boys (all of whom are aged between about six and fourteen) towards a reasonably civilised and co-operative society. The choirboys make wooden spears, creating the appearance that they are warriors within the group. Crucially, Jack has a
knife. Ralph, Jack, and a choirboy named Simon go off to explore, find out they are indeed on a deserted island and that there are
wild pigs on the island. The boys have another assembly where Ralph tells the boys to make a fire. The boys build shelters and start a signal fire using Piggy's spectacles. With no rescue in sight, the increasingly authoritarian and violence-prone Jack starts hunting and eventually finds a pig, which they hunt. Meanwhile, the fire, for which he and his "hunters" are responsible, goes out, losing the boys' chance of being spotted from a passing aeroplane. Piggy chastises Jack, and Jack strikes him in
retaliation, knocking his glasses off and breaking one lens. Ralph is furious with Jack. Soon some of the boys begin to talk of a "beast" that comes from the water. The next day, twins Sam and Eric, see something on the mountain and they tell the boys it's another beast. All the boys except Piggy and the
littluns go searching for it. Ralph, Jack and another boy named Roger continue on to the top of the mountain and see something move. The boys run away. The next day, Jack, obsessed with this imagined threat and tired of listening to Ralph, leaves the group to start a new tribe, one without rules, where the boys
paint their faces, play and hunt all day. Soon, more follow until only a few, including Piggy, Sam and Eric, are left with Ralph. Events reach a crisis when Simon finds a sow's head impaled on a stick, left by Jack as an offering to the beast. He becomes hypnotised by the head, which has
flies swarming all around it. Simon then climbs the mountain and sees that what the other boys thought was a beast is actually the dead body of a
parachutist. Simon runs down in an attempt to tell the others the truth but the frenzied boys, in the darkness, mistaking him for the beast; stab and beat him to death. Grieving over Simon's death, Ralph blames himself for not stopping the hunters for killing Simon but Piggy confronts him and convinces him that it was an accident. Piggy also defends the group's actions with a series of rationalizations and denials. Later on, the hunters raid the old group's camp and steal Piggy's glasses. Ralph goes to talk to the new group at their fortress, Castle Rock, using the still-present power of the conch to get their attention. However Jack refuses to listen. When Piggy takes the conch, they are not silent (as their rules require) but instead jeer. Roger dislodges a boulder from a cliff which falls on Piggy, killing him and crushing the conch. Piggy's body falls into the ocean and he floats face down. Ralph runs and hides in the jungle, later returning to visit Sam and Eric, who've been forced to join Jack's tribe by Roger. They warn him that Jack plans to hunt him down and kill him. The next morning, Jack and his hunters set fires to try and smoke him out. Ralph staggers across the smoke-covered island while the chant "kill the pig" draws closer. Stumbling onto the beach, Ralph falls at the feet of a
Royal Navy officer and landing party, who stare at the painted and spear-carrying savages that the boys have become. One of the youngest boys, Percival, tries to tell the officer his name, but
cannot remember it. The last scene shows Ralph sobbing as flames spread across the island. ==Cast==