Hawaii

A freakish series of decapitations has police officers and detectives brushing the island to bring the killer to justice.

After a cache of C-4 explosives is found, Gains goes under cover as a demolitions expert infiltrating a gang planning a bank heist.

Harrison and Declan track down a serial killer who targets streetwalkers; Declan offends a Hawaiian goddess when he sends his mother some holy lava rocks; Gains and Edwards search for violent carjackers who prey on tourists.

When a judge is murdered in a public park, Harrison and Declan have 72 hours to build their case or see the lead suspect leave for Samoa; Gains and Edwards must improvise a search for big-time drug dealers

A teenager is kidnapped by a sex-slave ring. Declan recruits Internet specialists to help track down a pedophile who might be able to help them catch the ringleaders.

Gains and Edwards see a track a drug dealer's source to a mysterious local island. And its residents claim it is an independent nation growing its own cash crop -marijuana.

A Hawaiian family feud ends up in murder. So the dectectives are on it. And when they research on it, they go back 200 years of family history.