A rebellious young alien (Terrin) transmits herself to newly- discovered Earth to prove she is capable of interplanetary exploration. Able to assume any form for which she has DNA, she gathers two samples, one a canine and the other a beautiful young woman. She begins with the canine form, thinking this will allow her to move more easily among Earth's creatures. It appears to work as she wanders freely through the small town of Everglade City, Florida.
Unaware that Earth bodies require rest, Terrin becomes exhausted and falls asleep. But her canine form is that of a female in heat, and she is rudely awakened by a male in the process of taking advantage. She is alarmed but accepting; after all, she has come to Earth to explore and experience. Two months later, she gives birth to three hybrid puppies.
A young man discovers what he assumes are strays and takes them in, naïvely unaware that it will forever change his life. Insecure and confused, Terrin abandons the canine form for that of the beautiful young woman. Like the canine, however, this new form does not come with clothing.