Like Scorpion, this excellent series was cancelled after four seasons. We appreciated that Angie wasn't sleeping around and the office stayed very professional. We particularly were grateful that the blood shown on so many police shows was very minimal, but were disappointed that the last season because more bloody and violent in what was shown. We don't need that. The last season escalated the bloodiness. The personal backstories were kept minimal, so we were kept interested in the crime stories. So many shows do too much of that. Thanks for four great seasons.