The Mysterons threaten to assassinate the Supreme Commander of the Earth Forces.

A 500-ton U.S. Army walker, the Sidewinder, falls into a pit during testing and International Rescue are called to save the crew trapped inside.

A cloud of space dust causes a mystery illness on Alpha; an Eagle crew is sent to discover its secrets, but the craft returns only with a strange beast that withstands all assaults and which Maya realises is not a life form. The senders of the beast want elements of Alpha's life support system.

Intro special guest: Kate Harbour

Captain Thrice contracts Galactic Fever and without treatment, he could die within five days. The cure is an extract from the leaves of the Wumbo plant, found only in the Great Swamp on the planet Quagmire. But the Wumbo plants are fiercely guarded by the Danks, who want them all for themselves.

Special guest: Kate Harbour

Torchy, Flopsy, and Pom-Pom decide to visit the toys who dwell in the mountain's caves. They discover the caves abandoned and find Gillygully and Whirly outside, claiming that a monstrous creature has moved into their turf. Torchy and Pom-Pom elect to investigate and discover Sparky, a lonely dragon who's been desperately searching for friends.

Intro special guest: Georgina Moon

Brogan's informant Slik Ostrasky is murdered by Tylan Gershom, a smuggler of illegal Xyronite immigrants, and the only witness is slimy Melazoid business executive Armand Loyster. Brogan and Haldane are assigned to offer Loyster protection until he can testify at Gershom's trial. But Gershom plans to ensure that Loyster never reaches the courtroom.

Intro special guest: Georgina Moon

Randomiser special guest: Richard James

The head of a chemical company hires the Protectors to discover who stole company secrets and sold them to a rival.

Intro special guest: Morgan Jeffery.

Dr. Beaker and Mike are taken prisoner by a tribe of headhunters while searching for a plant to cure an illness affecting Mitch.

Intro special guest: Tom Eames

When a World Security Patrol submarine is mysteriously destroyed, Troy and Phones are assigned to investigate. However, they are captured by the Aquaphibians and sentenced to death by King Titan of Titanica.

Intro special guest: Nicola Bryant.

Episode special guest: Ben Page.

Yuri seals Battlehawk inside Hawknest after Battletank picks up a bomb while investigating a ZEAF.

Intro special guest: Nicola Bryant.