It's a semi-spoof on action/buddy cop shows. You know, "this cop is straight laced and plays by the rules while his partner is loose cannon bad ass" type stuff. Each episode they're given a petty crime case that turns out to be connected to a much bigger case.
It's on Fox, but it's one of those shows that goes from one time slot to the next all the time so it can be tough to find. Right now I believe it is off for summer and coming back in the fall, possibly.
Right now you can watch 6 episodes on Hulu for free:
http://www.hulu.com/the-good-guys