Host: It approaches silently, its
destructive power hidden beneath the sea. A: Unlike things like hurricanes, there
are no warning signs. The weather doesn’t get bad. You don’t feel the earth shake.
Host: But, when this wall of water hits land, a city can be devastated. We can
hide behind walls or race for higher ground, but there’s no stopping, “Tsunami,
Killer Wave,” a new film from National Geographic Television.