As Grover's Mill celebrates the 50th anniversary of the radio drama that made it famous, little do they know what really happened that night in 1938, or that the "Martians" have returned.

While the Blackwood team picks up the pieces and tries to find a new home, the Morthren, too, have to find a new location as they are aware that the humans have been there once and might return. When Harrison and Kincaid go back to the empty base, they find an engram for the aliens' cloning devices that can transport memories and images from the subject to its copy. Meanwhile, Mana and Ardix have cloned a reverend so that he can spread the word of the one true God - the Eternal.

The harsh life in the city, coupled with a food shortage, lead Suzanne to take Debi out to the country to live with Suzanne's estranged mother. The aliens are also having food shortages, however, and have their own plans for the family homestead.