Nick Burghardt was always a talented detective who is able to solve even the most difficult and complicated cases. He has a charisma and his own investigate methods and is respected by the colleagues. One day the protagonists learns he is one of the descendants of the secret hunt group. Grimms, from the beginning of time, clean the human society from the creatures with super natural abilities and using it against the people. Only the chosen hunters can see the real face of these creatures. Became a new mankind defender, Nick has to be a part of world of people and a part of world of creatures. He tries to be anonymous keeping his new life a secret from his girlfriend and colleagues. Day by day he understands that his new role can be a menace for the people around.