Hawaii Five-0: Season 8, Episode 5

8 - 5: Kama'oma'o, ka 'aina huli hana (At Kama'oma'o, The Land of Activities)

At Halloween, Five-0 must investigate a string of murders that mirror stories from well-known Hawaiian folklore. Also, Grover is called to visit a man hours away from execution who may hold the key to a case that has plagued Grover for years.