It's been almost three years since Carter and Lee last joined forces in Rush Hour 2 (2001). But Carter is now a traffic officer in Los Angeles. Meanwhile, Lee is busy escorting the Chinese Ambassador to the World Criminal Court in Paris to disclose vital information about the Triads. When an assassination attempt shuffles the deck, an action-packed assignment to retrieve a crucial list of names awaits the former partners. However, this time, the stakes are higher than ever. And as the crime syndicate's murderous henchmen try to stop them, the past comes back with a vengeance. In this high-octane mission, will the boys finish the job once and for all?