Promos for 'Hawaii Five-0' (Sun., 10PM ET on CBS) predicted a major natural disaster awaiting Danno, McGarrett, Chin and Kono. But the tsunami never came; the warning signal was a fake, instigated by a computer hacker who wanted to force an evacuation.

McGarrett and Danno tracked down the culprit: a young woman on a docked boat, busily typing on her laptop. McGarrett stormed in, and she jumped off the boat. He began chasing her, jumping between yachts and across several boat decks. Suddenly the base of a mast swung out and hit her to the ground. Danno's handiwork. "OK, my work's done," he said. "Can we go now, please?"