The machines aboard Red Dwarf grow concerned nobody has their interest in mind, and an election is held between Rimmer and Kryten to determine their new representative.
However, the crew explain they have no intention of bringing them along, so the machines combine their total power to defeat the malware infecting Red Dwarf.
Rimmer initially intends to appoint himself as their new leader, mainly for the power the position would bring, so Kryten decides to run against him in a democratic election held by the machines.
After some debates, the election is tied; to put the odds in their favour, Kryten and a begrudging Lister travel to the garbage hold where Talkie Toaster has been residing for the last 25 years.
"Mechocracy" marks the fifth time Daniel Barker has voiced a distinct character in an episode, putting him at equal standing with Red Dwarf alumni, Tony Hawks.