Like every mechanism, [sleep], too, seemed prone to faults. Will Robinson seemed to be developing one such. (Nightmare/Comfort)

A young soldier crash lands on an uncharted planet, only to be taken in by the Robinson family. (Based on an alternate reality where there were no other survivors and the Robinsons are permanently stuck on the planet.)

Alternate title: let me fix you (but i don't know how). S1E7. Don x Judy. One-shot.

So, the NetFlix reboot of Lost In Space established that the eldest Robinson daughter, Judy, was from a previous relationship of Maureen's, but the show never explicitly said why. So, unless this gets contradicted in Season 2, this is a vague idea I have about how that all might've happened.

(Spoilers for Season 1) They all knew that the Robot had to come from somewhere. Someone out there somewhere built him for a specific purpose, which probably wasn't protecting a child. His creators had to be out there and they probably built more. And those alien people probably would not be happy that the people on the Jupiter-2 were in possession of their creation.

Maureen finds out she's pregnant just weeks after they're sucked into the black hole. It's the worst possible time and not exactly happy news for numerous reasons.

Judy proposes, and she and Don decide to marry right away.

Don freaks out ten seconds after realizing he's in love with Judy.

The Robinsons stick together. In the aftermath of the failed fuel-salvage attempt (Episode 7), Judy and Will get to discuss which of them is the most (and least) useless.

A theory that explains away the easter egg in the first episode of the reboot. Spoilers inside featuring tragedy, Will Robinson, The Robot, Doctor Smith, and the makings of how a name became a identity. Which makes the reboot a AU. This could totally fit in canon.

Poem: The Jupiter starships had crashed on an alien world. They were lost in space.