This movie mostly reminds of Training Day with Denzel Washington and Ethan Hawke. The pace and the mood is kind of the same, and that's not a bad thing, since TD is a really good action movie.
There's a few known actors in this one, but they don't make the difference. The fact that I hadn't seen a movie with the lead actor (Sean Patrick Flanery) before, helped me like it I think. Sounds weird. There's been made hundreds of movie about washed up cops who has a last stand against some evil doers, and this is also that type of movie, but I like the "twist" of the main characters background(no spoilers here =)
Any way good action, but don't expect too much of the story and reasoning.