Flash Gordon

Dr. Zarkoff's request to test his new anti-gravitation device on a remote planet is denied because of the mysterious deaths of most of a recent scientific expedition that recently explored the world. The sole survivor's wild tale of an idol's curse is dismissed by Flash and he, Dale and Zarkoff return to the planet to investigate.

After witnessing the destruction of five planets, Dr. Zarkov determines that the explosions were created by a nuclear bomb fueled by a material that takes hundreds of years to explode. Dale, Flash and the doctor journey back to 1950s Berlin to locate such a bomb planted on Earth.

Flash, Dale and Zarkov travel back in time to defuse a bomb that is set to blow up the Earth of the future.

Zydereen, the exiled former ruler of Neptune, hypnotizes Commander Richards and Dr. Zarkov into destroying Neptune's methane-to-oxygen converters.

Flash is captured by the evil witch of Neptune and she plans on using the brain machine on them again.

An electronic distorter ray paralyzes all of Earth's machinery and pulls the Skyflash towards an unknown planet.