Paul Deladus is 29. He’s an assistant professor at a Paris university. Paul became a teacher only reluctantly. He yearns to quit this “temporary” job, but can’t bring himself to. Consequently, he hasn’t finished his doctorate which would make him a full professor. In this way, with his modest earnings, he lives a half-life, waiting to begin what he might call “his life as a man”.
The “Green Planet” belongs to another solar system. Through the simplicity of their lifestyle those who live there are a real step ahead of us: they spend their time concentrating their knowledge, strength and energy on the development of their minds and bodies in a natural environment which they dearly preserve and care for. Once a year, they gather in the crater of a dormant volcano to decide which planets they ought to send messengers to. There are volunteers for every planet except Earth, which is considered too polluted and too dangerous. One woman alone, Mila, decides to go there to seek out her identity, as Osam the old sage has revealed to her that she was conceived there during a previous trip by her father.
In Marseilles (France), skilled pizza delivery boy Daniel who drives a scooter finally has his dreams come true. He gets a taxi license. Caught by the police for a huge speed infraction, he will help Emilien, a loser inspector who can’t drive, on the track of German bank robbers, so he doesn’t lose his license and his dream job.
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.
He broke up the German gang and dealt with the Yakusa. Now Emilien outdoes himself once more by singlehandedly trying to unmask a gang of crooks. As usual, everything goes wrong. As usual, Daniel’s close at hand. And once again, our two buddies get tangled up in new adventures, as surprising as they are unexpected. A word of warning: Get off the road!