A SHADO investigation reveals that romance may be complicating Moonbase operations.

Yung-star and It-star are sent with Captain Goat to run a pirate radio ship to lure the Terrahawks into a trap.

The Mysterons vow to sabotage a Spectrum conference in Switzerland that will determine the manner of Earth's return to Mars.

Steve, Venus, and Matthew encounter Graff and Snaff, a couple of friendly giants, on Triad – a planet three times the size of Earth – and help them in their efforts to explore space.

Two cattle rustlers, Johnny Pasto and The Nevado Kid, challenge Tucker to fight without his magic guns.

The Tracy family cannot help but reminisce about their many successful missions after a young boy infiltrates the island. They are nevertheless burdened by the problem that the boy knows their identity and the location of their base – until Jeff realises that they can use the boy's dreams to their own advantage.

Lord Tempo creates a time warp in order to slow down the Terrahawks' ability to react to a full-scale attack.

Stranded in Topsy Turvy Land, Torchy realizes that everyone needs a place to sleep. There are no bricks to be found, but he discovers an orchard filled with oversized fruit, so the toys hollow out pieces to construct homes for themselves.

Lieutenant Ninety has a nightmare in which he is promoted to general, but his erratic command wreaks havoc. A cascading series of disasters reaches its spectacular climax when Fireball XL5 crashes into Space City.

A side-step into a non-Anderson production, the Roberta Leigh-produced sci-fi puppet pilot film Paul Starr - featuring the voice of Ed Bishop! Agent Paul Starr and his partner Lightning of the Space Bureau of Investigation (SBI) travel to Mars where five atomic power stations have been destroyed by fire. Starr and Lightning work as security guards to try to uncover the cause.