Jason Lee Hoy

Five-0 investigates when a bomb squad is attacked and the culprit threatens to detonate additional hidden explosive devices unless arsonist Jason Sinclair is released from prison. Also, after Adam returns from the hospital, Kono realizes that they are being watched, and McGarrett prepares to take his relationship with Catharine to the next level. Former UFC Champion Randy Couture returns.

When a list of undercover CIA agents is stolen, Steve and Five-0 enlist the help of Magnum (Jay Hernandez), Higgins (Perdita Weeks), Rick (Zachary Knighton) and TC (Stephen Hill) to get it back and protect national security. Also, Higgins gives Tani some personal advice.

A man dying of lymphoma hires Magnum to find his estranged, bone-marrow-compatible brother who turns out to need Magnum's help as well. Also, Magnum's case brings back haunted memories for the guys of a past SEAL team mission that went sideways.

When a Navy petty officer is murdered, Jane and the team investigate while protecting the victim�s friend and colleague.