Two Australian boys are playing their favourite game — "International Rescue" — when their "distress" call is picked up by John Tracy on Thunderbird 5. After a tour of Tracy Island, and a warning not to use their radio again, the brothers are returned home. The Hood then tricks the boys into an old mine shaft before stealing secret photographs from their government agent father. This time the brothers' SOS is real, but International Rescue refuses to believe them.

Unwin and Harding are assigned to protect the King of Muldovia, who is in London to sign an oil rights treaty. The Muldovian Prince wants the throne for himself, but his attempt to have the King assassinated is foiled when his hitman is startled by the miniaturised Matthew and falls to his death from an open window. The Prince then hides a bomb inside a toy bear intended for the King's son.

On a mission to destroy an unstable ghost planet, Zodiac and Matic are caught in a Subterrain trap.

On election day for the role of Sheriff, Pedro decides to make a bid for the position but when he tries to cheat the town turns on him.

The body of Anton Zoref is invaded by an unknown life force. The man soon manifests an uncontrollable ability to absorb energy. As the Alphans struggle to understand this mysterious force, Zoref's need becomes insatiable. Driven by instinct, he makes his way to the greatest source of energy on Alpha: the Nuclear Generating Plant.

To celebrate MCM Comic Con London, the Gerry Anderson Store is having a special 50% off sale. Here are Ricky J and Jimmy A's top ten picks for bargains you won't want to miss.

Head to shop.gerryanderson.com until 23:59 on 29 May 2022 to grab your bargains.

While pursuing a ZEAF, Hawkwing flies too high and is marooned in space.

(Intro special guest; Robbie Stevens.)

The two-bit criminals Judd and Harper hold Mike captive

Straker must face his claustrophobia when the Skydiver submarine is damaged and unable to surface.

While investigating the disappearance of a probe, Troy and Phones are captured by the survivors of a ruined subterranean city.