UFO: Radar contact... They're landing!

Directed by Gerry Anderson, David Lane, Ron Appleton, Alan Perry

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.