With the help of an observatory in the Himalayas, Spectrum lands a probe on the Martian moon Phobos to perform detailed orbital reconnaissance of the Red Planet.

In September 1999, John Koenig reports to Earth's Space Research Center at Moonbase Alpha as its new commander. A strange sickness is killing some of the Moonbase Alpha crew. Commander Koenig's investigation reveals that the source lies at Nuclear Waste Disposal Area 1 caused by excessive magnetic energy fields. The continuous buildup of energy shortly causes massive explosion clusters that knock the moon off orbit into deep space.

Caroline is hired by an American millionaire who thinks his son, an artist living in Venice, has fallen victim to a con-man.

With the moon's trajectory reported to be shifting due to an unknown cause, the Alphans happen across a roving spaceship run entirely by a computer. Brian the Brain, as he prefers to be called, proves to be a devious device until the truth is uncovered.

Titan orders Agent X-20 to kidnap a pop star who is visiting Marineville.

A blackmailed SHADO operative opens the door for a possible alien attack on Moonbase.

Following a recommendation in a brochure, the Paradox crew decide to take a holiday on the planet Brightonia on Sea. But once there, they are captured by Short Fred Ledd who chains them up and steals the Paradox. Without water, their only hope of survival rests with Sir Squeakalot and Isambard’s latest invention, a remote control for the Paradox.

Mike and Dr. Beaker try to find a forger's plates - if an art dealer and a criminal don't find the plates first.

Yung-Star runs away, but he is unknowingly carrying a 'bug' in the form of a powder inside him.

A wealthy man is concerned to discover his teenage daughter is involved with an obscure religious sect. Harry goes undercover to find out what goes on inside the community.