Eleven-year-old Calvin Willeford stops a cat fight with a bucket of water and gets the surprise of his life when one of the cats melts away, leaving a strange ring in its place. The ring leads Calvin and his friend Kathy to several weird men dressed in black suits, who are certainly not normal human beings. An encounter with a ten-foot hairy monster, a wild ride in an alien spaceship...will Calvin and Kathy ever find out who the black suits are and why they are on earth?