Just a free plug for Netflix.  I watch lots of TV and most of it involves Netflix.  Today I have on Start Trek IV, The Voyage Home.

Kirk & company save earth by slingshoting around the sun to reach speed allowing time travel, come back to our century and pick up some Humpback Whales.  Then return to the 23rd century and re-establish the Humpback as a species, which had been hunted to extinction.

The whales were able to respond to an alien probe sent to communicate with them, that was damaging earth with its powerful transmissions.  Thus saving the earth because the alien probe stops vaporizing the oceans.

See, Star Trek isn’t that far fetched.

Awesome stuff.  Love Netflix.