Non-corporeal aliens attempt to take over the Earth starship Enterprise.

Taking refuge in an underground cave, the aliens attempt to sabotage the U.S. space program.

Since Adam's escape back to Earth, the aliens are attempting to track him down in order to resume their tests.

He tapped the table emphatically, "Why do you think the red aliens are attempting genocide on the blacks?"

"The aliens are not attempting to mislead us," he said.

Most aliens excluded under the current law have been attempting to accept invitations to speak or to attend conferences.

The aliens attempt to destroy the cannon by firing at it while they approach the bottom of the screen.

Extraterrestrial aliens attempt to secretly cause global warming and thereby terraform Earth into an environment more suited to their needs.

In that manner Richard was soon able to see what the alien was attempting to show him.

After the human ship fights the alien mothership to the brink of destruction, the aliens finally attempt to negotiate a surrender.