Son cerveau électronique gravement endommagé, l'androïde erre désormais sur les plages de Porto Rico, ne répondant plus qu'à son seul instinct de survie. Alors qu'un Frankenstein hagard terrorise la population de Porto Rico, les extraterrestres entreprennent donc de kidnapper des bimbos en bikini sur les plages de l'île, mettant savoureusement en lumière un des titres alternatifs du film, "Mars Attacks Puerto Rico".
In Eegah's cave, Roxy is reunited with her father, who tells her that he has begun to communicate with the caveman and has developed a theory as to the creature's astounding longevity.
When a frisky Eegah expresses what seems to be romantic interest in Roxy, her father, fearful that the creature may kill them both if he is rebuffed, suggests she put up with as much of it as she can bear.
When his helicopter ride fails to show up at his designated pickup time, Tom and Roxy go looking for him.
Roxy is soon kidnapped by Eegah and taken back to his cave while Tom searches for her.
She tells her boyfriend Tom Nelson and her father Robert Miller about the giant.