Richards is a scientist and political activist from a dome where, as the Computer With The Good Beard eventually informs us, there was until recently a functional two-party democracy. Then one of the parties, the “Control Party”, took over, imposed restrictions, declared the other party illegal and arrested its officials, and began running rampant through the environment.
With the dome in irreversible ecological decline, and learning about the Ark’s dire situation, Richards decides that the only thing for it is to flee the Ark in a lifepod with his daughter Valerie (Canadian gen-Xers, say hi to a very young Nerene Virgin, later to play the unforgettable Jodie on children’s edutainment programme Today’s Special), and blow up the Ark itself to give its inhabitants a merciful death.
Unfortunately, all of that’s just interesting backstory which is mostly wasted: the lifepod fails to eject, and Richards is forced to disarm the self-destruct mechanism with the aid of the hero trio. Which involves a kind of miniaturisation process (it gets heavily explained three times) whereby people project tiny versions of themselves into a microchip, and so most of the episode is taken up with Devon and Richards thunking clunkily around the microchip set, while Garth, out of his usual job since Valerie has a boyfriend, mostly sits at the computer finding out the abovementioned backstory, before eventually someone twigs to the fact that it might be a good idea to get him into the microchip as well, because technical guy.

The ending makes no sense whatsoever. Richards (spoilers!) sacrifices himself to save the Ark, and everybody immediately goes misty-eyed about what a genius and humanitarian he was, and nobody points out the obvious, i.e. he was the one who put the Ark in danger to begin with. Valerie and boyfriend trot happily off back to their biosphere, with no one apparently concerned about the fact that it’s been taken over by Nazis. The whole story about the death of democracy, which I think a lot of us right now would like to hear, just stays as backstory.
To end on a more positive note: all the guest stars this week are Black (we’ve seen a bit of diversity in the Omicron episode, but that’s been it so far), and there’s no plot reason for this, making it colour-blind casting. However, I’m inclined to unkindly suspect that the reason Valerie has a boyfriend rather than being Garth’s love-interest-of-the-week is due to the production team worrying about how an interracial relationship, even a chaste and largely implied one, might play south of the Mason-Dixon Line.