Hawaii Five-0 S07 E01 Makaukau ‘oe e Pa’ani? (Ready to Play?) : Season 7 begins with the body of a serial killer being found in Five-0 headquarters with an ivory chess piece in his mouth. When a second serial killer is found dead with another chess piece, Five-0 hunts for the vigilante as fear spreads that it’s not safe to travel to Hawaii. Meanwhile, McGarrett refuses to take it easy, even though he is recovering from surgery.