[1] It is the sequel to Gordon's earlier The Amazing Colossal Man (1957) and was distributed theatrically by American International Pictures as the bottom half of a double feature with Attack of the Puppet People.

The film's storyline picks up where The Amazing Colossal Man left off, although it was not marketed as a sequel and features a different cast.

Upon hearing of several recent robberies of food delivery trucks in Mexico, Joyce Manning (Sally Fraser), Army officer Lt.

Along with Army officer Major Mark Baird (Roger Pace) and scientist Dr. Carmichael (Russ Bender), Joyce goes to Mexico to look for Glenn and finds that he has, in fact, survived, but was left disfigured and nearly mindless by the trauma of his fall.

[5] Some of the tiny-sized props created for The Amazing Colossal Man by special effects technician Paul Blaisdell were featured again in this sequel via flashbacks.