After losing their companions, a policeman and a hitman team (website) together to take down their shared foe.
Bullet to the Head, a far more recent example of Stallone's work from 2012, starred him as Jumping Jimmy Bobo. He's a thief who has paired up with a cop to apprehend crooks who are assisting others. That is dreadful. Conspiracy.
Recommended links - Riffs and Reviews