Popeye Doyle (Hackman) and his partner Buddy Russo (Scheider) are a couple of hard-nosed NYC narcotics detectives who stumble onto what turns out to be one of the biggest narcotics rings of all time, involving French mastermind Alain Charnier (Rey). Cat-and-mouse thriller will keep you on the edge of your seat; contains one of the most exciting chase scenes ever filmed. Hackman's portrayal of Doyle is exact and the teamwork with Scheider special. Based on a true story from the book by Robin Moore. Followed in 1975 by French Connection 2.