"Popeye" Doyle travels to Marseille to find Alain Charnier, the drug smuggler who eluded him in New York.
 
Unnecessarily long in certain parts, but at least they finally give you closure from the first movie.
 
FUN FACT:  Doyle's memorable cry of "Mickey Mantle sucks!" during the cold turkey sequence was the source of much trouble for the film makers and their legal department. Producer Robert L. Rosen had to track down Mickey Mantle to obtain his permission for the reference. After a long phone call, Rosen flew out to Mantle's home in Dallas with a print of the film, which was screened for him and his lawyer. When Gene Hackman uttered the line, Mantle surprised Rosen not only by roaring with laughter but also insisting that they watched the rest of the film because both he and his lawyer were enjoying it so much. Mantle later happily signed a release waiver and the line stayed in the film.