The programme follows the adventures of KENT, the Key Environmental Non-judgmental Taskforce, a desperately underfunded Government organisation dedicated to protecting the environment and doing laundry in a post-apocalyptic world following a terrible eco-disaster known as the Withering.
He also has an evil twin brother called Professor Spiffo Nebulous, who is his physical double apart from having a moustache, being somewhat overweight, and lacking both thumbs (due to a freak Game Boy accident).
Played by Rosie Cavaliero, Paula Breeze is the ditsy assistant to Professor Nebulous, although how she qualified for a position in such an organisation given her apparent lack of any degree at all is a mystery.
Played by Graham Duff, Rory Lawson is Professor Nebulous' other assistant, the self-professed ladies' man of the team (although his only successful romantic liaison was with Paula when both of them were drunk and 1/4 of an alien senturian from the 9th galactic sector whilst at Woodstock during Hendrix's set) who handles the more physical side of operations.
Having taken an evening class in Media Studies and Applied Thinking, Rory yearns for the covert ops action and explosive confrontations of a top profile Government Agent but has to make do with aiding the team in cleaning clothes and repairing tumble driers.
He appears to be somewhat more intelligent than Paula, having apparently blown up Buckingham Palace during his chemistry class at school (Although in his defence he claims that the building was already scheduled for demolition and the Royal Family were away at the time).
Each episode features him saying, at least once, "UNLIKE YOU, PROFESSOR, I NO LONGER HAVE THE LUXURY OF [Insert bodypart of choice here]"; so far, he has claimed to have lost his chin, mouth, nose, eyes (with his optical scanners apparently processing the information and presenting it as a pie chart for some reason), hands (he initially claimed to retain one but more recently has stated that he only has a mechanical grabber), feelings, toes (all ten, which he now keeps in a jar), both legs, upper lip (although he retains the lower one), heart, fingers, nerves, head (Although Nebulous notes that Harry retains most of his head), brain (replaced with a chip that apparently causes him headaches), back (although he does have a hunch), arse (he mentioned that he has rented one from an unidentified source), spleen, heart, eye-teeth and normal teeth.
Commonly, Harry remains at KENT HQ during the team's missions, although he has departed it on some occasions, such as when he reinvented the vacuum cleaner.
Whilst the idea was dropped, the name remained) Played by Graham Crowden, Ronald Rowlands is a Minister with Unusual Portfolio, KENT's attaché to the Government.
The two met while at the Oxford University Islands and shared an apartment for a year, before breaking up under unrevealed circumstances, although their conversations when they reunited would suggest that deeper feelings remain on both sides.
If they are stoked regularly, an Infernon can live almost indefinitely, but the race is nearly extinct due to the Great Crazy Foam Monsoon of 2095.