Spencer returns to his grandfather's abandoned house and finds the Jumanji game again.
Spencer invites his friends to help him play the Jumanji game once more to rescue him after he gets sucked into the game.
The friends all enter the Jumanji game, but this time with changes: Spencer is a new avatar, and the game world is more perilous.
During gameplay, the group notices that players can now be switched into different avatars unexpectedly.
The team embarks on a mission to rescue their friend Spencer, now trapped in the avatar of a different character inside the game.
The group explores new environments like deserts, snow-covered mountains, and ancient temples that weren't in the previous game.
The group confronts upgraded and more dangerous enemies inside the game, including a henchman named Jurgen the Brutal.
It's revealed that Spencer's grandfather played Jumanji and is now part of the game world trapped as an avatar.
The group fights to defeat the game's main henchmen and escape the deadly challenges Jumanji throws at them.
The friends complete the game and return to the real world, resolving broken friendships and familial relationships.