After the false shooting on an innocent man during the operation of fighting terrorists, a successful detective, Steve Arnott, has been punished and transferred to another section of the anti corruption, where he has taken a special case, the thing that makes him struggle, as he has to do a good job.
It's a complex world and there's a lot going on... That suggests that the show could even improve, as the audience gets to know the characters more. Either way, it is well worth watching.