[2] It stars Lino Ventura, Fred Williamson and Isaac Hayes, who also composed the soundtrack.

It is a coproduction between United States, Italy (where it was released Uomini duri) and France (where is known as Les Durs).

[3] Roman Catholic priest Father Charlie and former police officer Lee solve a bank robbery mystery that stretches across the city.

After Lee is removed from the force due to $1,000,000 being stolen from the bank, Father Charlie helps him to gain revenge for the loss of one of his friends.

The main theme of Three Tough Guys would be used in Quentin Tarantino's Kill Bill Vol.