Hawaii Five-0: Season 8, Episode 25 - ProjectFreeTV

8 - 25: Waiho Wale Kahiko (Ancients Exposed)

McGarrett and Five-0 discover a Russian spy ring hiding in plain site on Oahu when a Russian nuclear attack submarine appears on the coast of Waikiki. Also, Tani is conflicted by her unnerving discovery at Adam's house.