The familiar warning about things that seem almost unbelievably wonderful applies to the arrival of the golden "Axons" on Earth, who generously provide scientists with their mineral “Axonite.” This could potentially resolve numerous issues facing the planet, but the skeptical "Brigadier" (Nicholas Courtney) requests the "Doctor" (Jon Pertwee) look into it, fearing this might be yet another deceptive scheme by an alie…