UFO: Radar contact... They're landing!(1974)

movie - first aired/released 1974-10-23 - audience 6.3

Directed by Alan Perry, David Lane, Gerry Anderson

Fleets of UFOs roam around the Moon Base. One manages to land and is confronted by Colonel Foster who is then accused of treason for having collaborated with the alien pilot in an attempt to survive on the lunar surface. Foster flees, chased by security agents, while Commander Straker and Colonel Freeman investigate to exonerate him.