This reminded me a little of John Wayne's "Mc Q" (1974) only this time it's Dolph Lundgren who is the curmudgeonly old cop who bends the rules to suit the investigation. That's caused his bosses a bit of an headache, so they want to put that frankly rather odious "Johansen" out to pasture. A trip to Mexico is organised so he can retrieve and escort a vital witness in a double-murder case back to the USA. "Rosa" (Christina Villa) is no shrinking violet and the couple don't exactly hit it off, but gradually that all changes as the pair begin to realise that they are being played. By whom, though...