WATCH THIS EPISODE

Pe'epe'e Kainaka (Those Among Us)

A pool cleaner is murdered and the investigation uncovers a possible terrorist cell of radicalized students who are planning an attack on U.S. soil. Meanwhile, Chin takes Grover spearfishing.

Season 4 | Episode 20
TV-14-V
Originally Aired On: March 19, 2017
2518 Expires March 26
PRESENTED BY
Cast

Alex O'Loughlin

Steve McGarrett

Daniel Dae Kim

Chin Ho Kelly

Grace Park

Kono Kalakaua

Scott Caan

Danny "Danno" Williams