Wikipedia
The head of the russian mafia, Konali, has released a video game that is
played worldwide. Unable to find proof and arrest him, the head of the Moscow
police asks Lassard to come and help him with a team of his best men. They
are set up by Konali and forced by the head of the police to leave Russia by
the next airplane, but instead start chasing Konali's men, and eventually find
Konali at his video game factory, where version 2 of his game, if released
worldwide, would have allowed him to break into any computer system and take
control of it. Konali escapes them and flees to his restaurant where Lassard,
who had been separated from his team the whole time, arrests him.