Hawaii Five-0

Season 7, Episode 21

Episode Title: Ua maloʻo ka wai (The Water Is Dried Up)

Air Date: 2017-04-07

Overview:

McGarrett and Five-0 are captured and face certain death after tracking a dangerous nemesis to the Island of Lanai. Also, Grover takes his son to Chicago where he testifies against a dirty cop from his past.