Steve McGarrett, head of Hawaii Five-O, investigates the death of a close friend who appears to have drowned. Steve's knowledge about his friend and a mysterious white substance lead him into a ...

Only ET was with the two casts talking about their highly anticipated crossover episode! 'Hawaii Five-0's season nine finale airs Friday, May 17, at 10 p.m. ET on CBS.

"Hawaii Five-0" actor Taylor Wily has died ... in the film "Forgetting Sarah Marshall" and appeared during the 20th season of ...