14 January 2011,
Here's the Synopsis for Hawaii Five-0, Season 1 Episode 15: "Kaie'e", airs Sunday, Jan 23rd.

Five-0 struggles to stay a step ahead of a major tsunami that has the island evacuating its shores as they investigate the disappearance of the head of the Tsunami Warning Center, on HAWAII FIVE-0, airing on a special night: Sunday, Jan. 23, immediately following the AFC Championship game on the CBS Television Network.

Labels: CBS, Hawaii Five-O, Season 1, Spoiler, Synopsis