The B.A.D. team tries to help a friendly alien life form return to its mothership, but they are attacked by a different group of aliens who are decidedly unfriendly.
The team races against time to retrieve people from a top-secret jungle lab before it is overrun by alien plant-life.
When an alien craft is shot down by U.S. defense satellites, the four survivors occupy the bodies of human hosts to protect themselves from being harmed by the light of Earth's sun.