A crazed scientist calling himself The Voice from the Sky broadcasts his voice all across the globe, and threatens to suspend all energy in the earth's atmosphere and turn day into night unless the world immediately destroys all arms and vehicles of warfare. U. S. Secret Service agent Jack Deering is sent to Arizona to investigate
Prof. Millard pretends to be dead and helps Jeff King ferret out Vulcan, the evil traitor at the sci...
Disaster seems imminent when scientists discover that the planet Mongo is about to crash into Earth....
Mota is a Martian representative, who has come to impose interplanetary law on the Earth (which has ...
A famous scientist invents a humanoid robot (the titular "monster"), so a greedy rival scientist pla...
Man-woman team of investigators uncover a gang whose mad scientist leader has developed an invisibil...
A Martian invader crashes his spaceship conveniently close to the workshop of a scientist who is dev...
Claire Forrest seeks her kidnapped scientist father, hidden somewhere on Mystery Island. He is hel...
Dr. Ernst Grood , having already dominated the planet Ergro, now intends to take over the control of...
A newspaper publisher and his Korean servant fight crime as vigilantes who pose as a notorious maske...
Buck Rogers and Buddy Wade are in the middle of a trans-polar dirigible flight when they are caught ...
Part of the artificial-creature series encompassing Der Golem (1914 and 1920), Alraune (1918, 1928, ...
Criminals steal a death ray that concentrates the rays of the sun. The inventor's daughter and a gov...
A variety of people are searching for a long-hidden treasure somewhere on an island. Chapters: 1. ...
The nefarious Dr. Fu Manchu searches for the keys to the tomb of Genghis Khan, in order to fulfill a...
In this movie serial Professor Sturgess invents a miraculous engine which can draw unlimited power f...
A mad scientist named Dr. Satan plots to steal key pieces of technology to enable him to build an ar...
A 15 episode serial in which Blake battles the "Scorpion" over possession of a 'death ray' machine.
Two marine lieutenants battle a masked would-be world conqueror who uses electricity as a weapon.
Commando Cody, 'Sky Marshal of the Universe', works with American scientists Joan Gilbert and Ted Ri...
It is 1865 and Union prisoners use a military balloon to escape a Southern prison camp near the end ...