Five-0 gets trapped inside a dilapidated building in Oahu's Chinatown, where they try to protect a wounded Gabriel and plan their escape. But gunmen looking to kill Gabriel storm the building.
A woman is murdered in her home and Five-0 learns that one of their own has a deep connection to the victim's young daughter.
Five-0 tries to save a kidnapped college student from a dangerous vigilante. Meanwhile, Max, Kamekona and Flippa fight to survive after being shipwrecked.
Five-0 goes on a manhunt when a chemical spill permits six dangerous inmates to escape, including Kono's husband, Adam.
Five-0 investigates the theft of a high-tech, indestructible suit created for the U.S. military. Meanwhile, Jerry tries to help his sister save a captive elephant.
A mob boss from a case Grover worked 15 years ago seeks revenge and forces Grover to take his family on the run.
Five-0 hunts a Russian spy who stole a flash drive containing classified NSA information that puts one of their own at risk. Meanwhile, McGarrett learns why Catherine left him; and Abby continues to conceal her actual mission from Chin and Five-0.moreless