When a new growth hormone is accidentally released into a South American river, a house is besieged by alligators – now many times their normal size. International Rescue must subdue the reptiles and save the house's occupants.

Intro special guest: Kiran Shah

Too Tall Johnson sues Dick Spanner over his loss of height, but he agrees to drop the lawsuit if Spanner can find the family's parrot Polly, so the detective heads to Ivywood.

Intro special guest: Natalie Roles

The WASP recruits an eccentric professor to develop a missile capable of neutralising an indestructible enemy submarine.

Suffering from Space Fatigue and in need of a break, the Paradox crew visit a Galactic Park on the planet Themea, apparently run by Twaddle Duff. The crew decide to take a ride on Twaddle Duff’s ghost train, unaware that the train is actually under the control of Dr. Agon, who plans to give them the ride of their lives!

An alien ship lands seeking aid, but when its commander emerges and sees Maya, she stuns Maya, putting her in stasis. The ship bears Dorzak, a Psychon refugee who behaved criminally on the commander's planet. Dorzak beguiles Maya about his intent, using extremely well-developed psychic abilities to control others' thoughts.

The Protectors are hired to break a billionaire's brother out of prison.

Intro special guest: Dallas Campbell.

The Mysterons threaten to assassinate the commander-in-chief of Spectrum, Colonel White.

Intro special guest: Dallas Campbell

The railroad finally comes to Four Feather Falls connecting it to Dallas, however someone keeps sabotaging the tracks.

Intro special guest: David Quilter.

Pilot Bill Gibson and his younger brother Jimmy, along with their pet chimpanzee, Mitch, find themselves stranded at sea following the crash of their aircraft, Falcon 25. With Navy rescue out of the question due to heavy fog, the opportunity arises for Mike Mercury to give Supercar a test run.

A documentary/extended advert for the Blue Cars travel agency, produced by AP Films. Nicholas Parsons boards a luxury tour bus for a trip across Europe.