This movie is a bit like the over the top Brian Bosworth film "Stone Cold". The main difference is that this one is based on a true story and is more serious fare than that film. Charlie Sheen does a surprisingly good job in the lead role, a guy who goes deep undercover to try and infiltrate a biker gang. He does so very well as he makes his motorcycle from scratch which using one already assembled and retrieved from a police lock up has nearly deadly consequences for a man who did not go quite as undercover as Charlie's character. Also in this one is Michael Madsen, who plays the biker leader very well. He has the aura of a biker dude, something Lance Henrickson did not have in "Stone Cold". There is a bit of action in this one, but this film is primarily a drama and it is a good movie too. "Stone Cold" was a fun movie to watch, but just not the same caliber as this movie. No, this one is the superior film on almost level, it is a bit surprising to see Charlie Sheen pull off a biker dude, but he does so very well. So all in all a good undercover cop drama.