The Space Adventures of Flash Gordon - Ihe Lure of Light - 1955

This is episode number 17 of the one and only season of the original Flash Gordon television series from the 1950's. In this episode The evil Queen Credentia of the planet Diana, recently paroled by the Galaxy Council, overhears a plan to make the Sky Flash capable of traveling at the speed of light. She kidnaps Dale in order to find out the details, so that she can go back in time and change the outcome of the war she lost.