Mr and Mrs Space Spy issue a fake distress call in an attempt to trick Zodiac into handing over a convict in transport.

(Intro special guest: Beth Chalmers)

Harry is the victim of a car crash. But was it an accident?

A message on Sproggle’s radio draws the Paradox crew to the Mountain of Morg on the planet Zark to search for the Lavender Compass that will lead them to Lavender Castle. But the caves of Morg are laced with deadly traps and the travellers' every move is being watched by a sinister figure who wants the Compass for himself.

Strange events befuddle the Alphans as they approach the planet Piri. When exploring its lifeless surface, Koenig encounters the seductive servant of the mysterious Guardian of Piri. She offers the wayward Alphans a life of peace and perfection. Realising the deadly truth behind the peace of Piri, Koenig struggles to free his people from the Guardian's influence.

Father Unwin falls ill from heatstroke and recovers at his vicarage. After reading a newspaper article about an epidemic in Africa, he has a surreal dream in which he and Matthew are tasked with ferrying medical supplies to Bishopsville in a flying Gabriel. When they are captured by native tribesmen for human sacrifice, Unwin must save himself and Matthew with the help of his gobbledygook.

Pedro and Fernando take "Doc" Haggerty and hold him hostage for ransom.

(Intro special guest; Nana Visitor)

The Overlander is hijacked, but the hijacker, a news reporter by the name of Darrel, is a potential security hazard for the Terrahawks.

An exploitative businessman is compelled to change his ways after he is bewildered by Joe 90's multitude of brain patterns.

When aircraft are shot down during live broadcasts of a hit song, International Rescue suspects foul play. Tin-Tin and Lady Penelope (posing as the singer Wanda Lamour) investigate, but are left in mortal danger when a ski lift is sabotaged and speeds out of control down a mammoth mountain slide in the Alps.

In Malta, Harry gets involved with an Arkansas millionairess, her pet dog, and a piece of microfilm.