Looks like the family is having a picnic in the most unlikely spot, the ravine of Bronson Canyon, California (just rocks, dirt, and more rocks.) It is nap time. When Johnny wakes up he finds that the earth has been destroyed. The advanced force invader is a creature that looks like an ape in a diving helmet. He must be related to Laurence Welk because there are bubbles everywhere. Soon it is clear that the invader (Ro-man) has the hots for Alice (Claudia Barrett). Hope she likes hairy, bald men. Talk about ménage à Trios. Roy said to Alice "You're so bossy that you have to be milked before you come home at night" so they get married.
Will humans survive?
Does Ro-Man get to see Alice strapless? (Will we?)
Will Johnny ever play house with Carla?
Be prepared for the shocking conclusion of "The Robot Monster."