Oro’s back, suggesting that someone on the team has an Oro fixation. Anyway, he announces that he’s going to save the Ark by shipping it out to his planet, and it only takes the hero trio three-quarters of the episode to work out that Oro’s people want to cannibalize the Ark for its resources and aren’t too bothered about the welfare of humankind.
An unexpectedly entertaining addition this week is Tau Zeta, an android that looks for all the world like a human-sized version of one of those 1950s tin toy robots. It’s got the voice of a CBC TV announcer, and the metatextual ability to bleep swearwords. And for some reason it’s knocking about the Ark. A surprisingly useless addition this week is a scruffy old man who appears in the first scene trying to break into a biosphere and is castigated for doing so by Devon, apparently with no regard for the irony this causes. The scruffy man is otherwise completely unnecessary to the plot, but hangs around till the end of the story anyway for some reason. Possibly to give Garth something to do, since he can’t very well fall in love with Tau Zeta (though that might at least have been entertaining).
The end of the episode sees Oro, now a fugitive from his people after failing in his mission (spoiler alert, he loses a debating contest with Devon, which doesn’t say much for his abilities), left to wander the corridors of the Ark. Since he never gets another chance to return, I suppose that makes him a Chekhov’s gun that never got fired.