Terrific show. I loved the power-play among the top echelons of the police. Powerful storyline plus great action.
Being a Canuck and Torontonian, I could easily identify the locales and the backdrops of this show (It is shot in Toronto).
I believe it started off with CTV only and then after a couple of episodes, CBS picked it up. One can see the influence of CBS trying to make this into an American show - (1) it started getting less and less Toronto police specific; (2) police departments got a change of name, e.g. SIU (Special Investigations Unit) of the Toronto police became IA (Internal Affairs).
Hope this show continues to the next season.