The Japanese ambassaor is visiting Marseilles to view the city police's anti-gang tactics. During the visit, however, he is kidnapped by a group working for the Japanese yakuza. Young officer Emilien is determined to rescue the ambassador and officer Petra (his girlfriend), who was also kidnapped, and restore the honor of his department. Once again, speed demon taxi-driver Daniel (from the first Taxi movie) is called upon to save the day with his high-speed driving skills.

Laborie is a high-flying officer in the French special forces. Her mission is to escort Abedin Nexhep, a godfather of the Albanian mafia. Charged with heading a wide-reaching prostitution network, this formidable criminal is due to stand trial before a European court. During the transfer, killers hired by Nexhep set up an ambush to free their boss but Laborie and her men manage to escape. After a frantic chase, the officers seek refuge, with their prisoner, in a warehouse located in the heart of an industrial park. There they meet up with a gang that has come to steal computer material. Meanwhile, Nexhep's killers surround the warehouse?