Perhaps mistaking Smith for Kirk, a green-skinned space-babe attempts to seduce the craven doctor, alluringly singing his name in the vacuum and piercing his heart with come-hither looks through the spaceship's picture-windows. Meanwhile, John and Don, having discovered that Smith had accidently jettisoned the Jupitar 2's fuel supply, try to reach Earth before the family drifts out of the "galaxy" to become 'Lost in Space' yet again. None of this makes any sense whatsoever but the episode is entertaining and the verdant siren with the salad-bowl helmet blowing kisses whilst floating in the void is a lasting image (sufficiently so to grant actress Vitina Marcus permanent 'convention status'). In addition to the 'why do they tolerate Smith?' conundrum, this episode adds 'How stupid is Penny?' - after repeatedly hearing her father telling Smith that they can't go to Earth and repeatedly witnessing the consequences of the selfish doctor's various machinations and lies, she still agrees to reprogram the ship's 'astrogater' without telling anyone as a favour to a 'friend'. It's good to see the Robinson's back in space and there are lots of fun images of the Jupitar 2 in flight, being threatened by suns, space-blobs, etc. All in all, this episode has an odd, almost surreal appeal that overrides its inherent ridiculousness.