A misfit group of unwitting high school students stumble upon a cursed object, an ancient Aztec Death Whistle. They discover that blowing the whistle and the terrifying sound it emits will summon their future deaths to hunt them down.
The Smurfs team up with their human friends to rescue Smurfette, who has been abducted by Gargamel, since she knows a secret spell that can turn the evil sorcerer's newest creation, creatures called "The Naughties", into real Smurfs.
