With the assistance of Vicki, a nightclub stripper, Vincent continues his search for an alien spacecraft.

Vincent is called on by a renowned electronics expert who fears he may soon be abducted by alien invaders.

A dying telephone lineman's fantastic story leads Vincent to investigate a huge industrial complex owned by a famous war hero.

Vincent travels to a small town to check a possible link between the aliens and an attack of carnivorous insects.

Vincent is called upon to help avert possible alien infiltration at a government nuclear test site.

Vincent is contacted by a meterologist to help investigate the suspicious nature of a hurricane along the Eastern U.S. coast.

Vincent helps a security official investigate the deaths of two lunar astronauts in a strange red fog.

David Vincent is kidnapped in a sneak attack on his new found alien-fighting allies, and he must try to escape an alien installation with a human psychologist.

A pair of aliens who want to return to their home planet and make a political argument against the invasion of Earth ask David Vincent to help them elude an intensive police manhunt.