Feature version of the 1938 film serial FLASH GORDON'S TRIP TO MARS. Flash Gordon fights Ming the Merciless once again to ensure the survival of the Earth.
After losing a coveted role in an upcoming film to another actress, screen queen Mona Marshall (Lola Lane) protests by refusing to appear at her current movie's premiere.
According to his last will, the rich American uncle of vacuum cleaner salesman Peter Pett only leaves his 5 million dollars to Peter if he is married happily.
The vassals of the Asano clan, who surrendered the castle & became wanderers, deceive the enemy and the public, wait for an opportunity to avenge their master and his family.
This film was mainly shot in the Japanese skiing resort Hokkaido in 1937-38 and was intended to create support for the coming winter olympics of 1940 in Japan which however were cancelled because of the Japanese-Chinese war.