It's 1952, as usual.

Having fired the Dangerous Giant Space Laser at the alien vessel containing his crew, Quanderhorn creates "improved" duplicates of them all as replacements.

Meanwhile the originals - having luckily escaped the blast by triggering the Mercurian metadrive thanks to an astonishingly angry outburst from Guuuurk - find themselves marooned in a strange forest which the Martian deduces is somewhere in the Crab Nebula.

The professor receives a dire warning from his future self, as an ancient alien ziggurat emerges at Piccadilly Circus Tube Station - just by the chocolate machine. He hastens to London to investigate with his new assistants.

Our heroes are slightly surprised when a number 43 bus to Highgate Woods arrives unexpectedly and they race to Piccadilly Circus to confront the professor and their doppelgangers.

But Prime Minister Churchill has plans of his own to deal with Quanderhorn, and summons up his crack Lab Busting bomber squadron.

The Quanderhorn Xperimentations - an adventure beyond human understanding.

Professor Quanderhorn ...... James Fleet
Brian Nylon ...... Ryan Sampson
Dr Gemini Janussen ...... Cassie Layton
Guuuurk ...... Kevin Eldon
Troy Quanderhorn ...... Freddie Fox
Winston Churchill/Jenkins ...... John Sessions
Synthetic Voice ...... Rachel Atkins

Created and written by Rob Grant and Andrew Marshall

Director: Andrew Marshall

Producers: Rob Grant and Gordon Kennedy

An Absolutely production for BBC Radio 4, first broadcast in July 2018. Show less