Close to the nature, "Hawaii Five-0" will tackle an episode about one of the biggest disasters on the planet. In "Kai e'e (Tidal Wave)", 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.
"Bones" star Joel David Moore will appear as the warning center's deputy director Sheldon Tunney.
Singer JoJo will guest star in this episode also as Courtney Russell, Moore's on-screen daughter.
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Entertainment Weekly offered a spoiler about this episode, saying Michelle Borth's Catherine will return and probably hook up with Alex O'Loughlin's Steve.