See Ya, Space Cowboy

Escaped slave and radical Genthry is facing down his final moments, bound to the execution platform, when some soul detonates the platform and the prison wall. He didn't plan it, but he's more than happy to take the opportunity to escape and thumb his nose at fate yet again. By the time he gets his hands on a ship, the authorities have caught up to him in the form of handsome marshal Dryath Riat...