A prank gone wrong by Chinese exchange student Xi Zhōu sends Lucas and his family reeling from their everyday lives. A switched pizza box full of cash not only brings a crew of gangster rappers led by the famous Miss Nelly onto the scene, but also the real mafia and a bumbling pair of cops. The wild adventure pulls the two unlikely boys into a whirlwind of escalating, increasingly dangerous events. Together with his crush Charly and Xi, Lucas tries to untangle the chaos. It quickly becomes clear: to get rid of the ghosts they’ve summoned, they need one last, brilliant prank.