Space miner Nerim (familiar character actor Strother Martin) has undermined Priplanus (the planet on which the Robinsons spent much of the first season) to a point where it has become unstable and faces imminent destruction. The second season opener (now in colour) pretty much follows a trajectory similar to a number of first season episodes: an eccentric 'character' appears, Smith sees an opportunity to profit at the expense of some or all of the Robinsons, the price he/they would have to pay is revealed, the problem is solved. This episode ends with some fun apocalyptic imagery as the Jupitar 2 barely lifts off in time to avoid being immolated. While their anxiousness to depart the exploding planet is understandable, the Robinsons seem to give little thought their adopted world's various, now doomed, denizens, including the little princess from 'The Lost Civilization', Penny's invisible friend Mr. Nobody, and Debbie the Bloop's entire species. The subplot about the life-endowing elixir that Nerim uses to entice the always avaricious Smith feels like a glommed-on attempt to wedge in a 'monster-of-the-week' (which is pretty silly). While the show is replete with implausibilities, one of the greatest is the Robinson's continuing acceptance of Smith.
