Picking up two years after "The Lost Skeleton of Cadavra," this drive-in-era sci-fi film spoof finds that movie's heroes and heroines heading into the Amazon jungle and the Valley of the Monsters to locate a priceless radioactive substance. Of course, they also encounter more deadly creatures that will impede their journey. All the trademark genre staples are present; Daniel Roebuck, H.M. Wynant, Fay Masterson, and Frank Dietz star. 92 min. Standard; Soundtrack: English; audio commentary; "making of" featurette.