Who killed an FBI agent who was trying his best to crack down on organized crime?
That was the big question on Hawaii Five-0 Season 8 Episode 12 and one that McGarrett wanted to get to the bottom of.
He took the murder to heart and rounded up every single gang-related criminal on the island in an attempt to find the person responsible, but who was it?
Meanwhile, Adam was given the green light to form a new division within Five-0 to take on organized crime.
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Paul Dailly is a staff writer for TV Fanatic. Follow him on Twitter.