Known as "On Dangerous Ground" in the UK.
A big nuclear company wants to take land (Choke Canyon) away from a peaceful scientist who is doing safe energy research work there to dumb radioactive waste. Obviously the peaceful guy isn't going to give them it. Nuclear guys will do anything to get rid of him, including killing him. Every one of the Nuclear companies goons come for him, but he dispatches them, even "Big" Bo Svensson, in typical 80s fashion.
Film gained a bit of notoriety in the 80s due to the theme song by Mike & The Mechanics "Silent Running (On Dangerous Ground)" being a hit in 1986. Song was more of a hit than the film. Tune is nowhere to be found in the movie though. Stunt work is great too. Check out the ending aerial joust with all the planes. Awesome.
Has a nice environmental message, which I always like too. Mildly recommended.