While exploring an old mansion, siblings Peter and Judy Shepherd find a curious, jungle-themed game called Jumanji in the attic. When they start playing, they free Alan Parrish, who's been stuck in the game's inner world for decades. If they win Jumanji, the kids can free Alan for good - but that means braving giant bugs, ill-mannered monkeys and even stampeding rhinos.
Jumanji follows the adventures of various people who find themselves imperiled when playing Jumanji, that will either unleash its dangerous elements into the real world or trap the players within the game. Ultimately, the only way to end the disruptions is to finish the game while enduring its resulting dangers with each succeeding move.