McGarrett in "Na Ki'i" Episode 18 of Season 3
McGarrett (Alex O’Loughlin) investigates a murder that sends Catherine in undercover at the local roller derby to find the culprit, on HAWAII FIVE-0 Monday, March 18 (10:00-11:00 PM, ET/PT) on the CBS Television Network. Photo: Norman Shapiro/CBS ©2013 CBS Broadcasting, Inc. All Rights Reserved.