A teenager and his girlfriend must save the world from "eye" aliens after their attempts to convince authorities of an invasion fall on deaf ears.

The Dallas trial of Lee Harvey Oswald, President John F. Kennedy's alleged assassin, is enacted as it might have occurred. After the defense enters pleas of "not guilty" and "not guilty by reason of insanity," 23 witnesses for the prosecution testify. No verdict is returned.

While searching for oil in the deadly swamplands of the Florida Everglades, members of a geological expedition meet an insane doctor who is working on an experiment to create a creature that is part man and part alligator.