Watch a quick Jumanji: Welcome to the Jungle trailer tease A quick trailer tease has been revealed for the upcoming sequel Jumanji: Welcome to the Jungle, with the full trailer hitting on Thursday. Check out the Jumanji: Welcome to the Jungle trailer tease below! In a brand new Jumanji adventure, the tables are turned as four teenagers are sucked into Jumanji’s world – pitted against rhinos, black mambas and an endless variety of jungle traps and puzzles.