LOST IN SPACE: Season 1: Diamonds in the Sky

This episode earns its place in a strong first season. The Robinson family's core remains what makes this show worth your time: people who choose to risk themselves for one another, with marital tension handled honestly rather than exploited for drama. That's rare, and it's worth rewarding with your attention.

The cost is small but real. A new character, Dr. Smith, introduces genuine moral grayness — she abandons another survivor and steals his equipment to save herself, and the episode doesn't flinch from showing the ugliness of that choice. Add a brief flashback of robots killing humans and two obscenities, and you have a episode that's adventuresome rather than dark, but not quite spotless.

For most families with kids past the youngest years, this is easy to recommend. Watch it together.

Two new survivors crash onto the mysterious planet where the Robinsons are stranded: Don West, and a doctor whose past isn't quite what it seems. As the two search for other survivors, three of the Robinsons investigate the strange alien robot Will discovered earlier — and a deadly storm begins closing in on everyone, forcing a race for shelter before it's too late.

Three stars point to a confident, well-built episode of serialized sci-fi. The strongest material here is the marital tension between the Robinson parents, which the show develops with restraint rather than melodrama, deepening what was only hinted at earlier in the season. The family itself stays admirably consistent — tight-knit, morally grounded, willing to sacrifice for each other.

The new characters give the episode its edge: Don is decent and tries to help a fellow survivor, while Smith's betrayal — leaving him stranded and taking his gear — supplies real moral tension without tipping the show into cynicism.

This episode is built on a strong moral foundation. The Robinsons model sacrifice and loyalty — risking their lives for one another, treating family bonds as worth protecting even under mortal threat. That's the episode's clearest inheritance from a biblical view of the family: love that costs something.

It isn't uncomplicated, though. One new character actively works against these values, choosing self-preservation through deceit and theft. And in a smaller but notable moment, two characters discuss religion in humanist terms, treating faith as something not real rather than something contested. It's a brief note, but a real one, and parents should know it's there.

Taken together, the episode still lands closer to virtue than to cynicism — it shows betrayal honestly, but doesn't celebrate it, and lets the Robinsons' faithfulness to each other carry the emotional weight. That contrast between loyalty and self-interest echoes something Scripture prizes deeply: "Behold, how good and pleasant it is when brothers dwell in unity!" (Psalm 133:1).

This is a strong follow-up episode — grounded, morally serious, and still fundamentally about a family choosing each other even under pressure. A little grit from a new character's betrayal and a brief violent flashback keep it from being spotless, but nothing here should keep most families away. Worth watching.