Dr. Cyclops: A brilliant but deranged physicist shrinks his enemies to one-fifth of their normal size when they begin to challenge his unconventional experiments. Cult of the cobra: Vengeance is sworn against six American GI's after they witness a clandestine ceremony worshiping beautiful women who can change into serpents. The land unknown: When a navy expedition crash-lands in a crater thousands of miles below sea level, they encounter a hot, tropical landscape of prehistoric terror filled with ferocious dinosaurs. The deadly mantis: A paleontologist teams up with the military to battle a huge praying mantis when it goes on the attack in metropolitan cities after being released from an Arctic iceberg. The leech woman: Determined to recapture her beauty, a woman discovers a compound that will restore youth - but only when it's combined with fluid taken from bodies of the newly dead.

Dr. Cyclops in color; other films in b&w. Originally produced by Universal-International as motion pictures in 1940-1959. Includes original theatrical trailers.

[Disc one] [1] Dr. Cyclops / produced by Dale Van Every ; screenplay by Tom Kilpatrick ; directed by Ernest Schoedsack (1940, 78 min.) -- [2] Cult of the cobra / produced by Howard Pine ; screenplay by Jerry Davis, Cecil Maiden, Richard Collins ; directed by Francis D. Lyon (1955, 80 min.) -- [Disc two] [3] The land unknown / produced by William Alland ; screenplay by Laszlo Gorog ; directed by Virgil Vogel (1957, 79 min.) -- [4] The deadly mantis / produced by William Alland ; screenplay by Martin Berkeley ; directed by Nathan Juran (1957, 79 min.) -- [Disc three] [5] The leech woman / produced by Joseph Gershenson ; screenplay by David Duncan ; directed by Edward Dein (1959, 77 min.).