[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/robinson_mind_control.png]]
[[caption-width-right:350:''[[Ride/CarouselOfProgress There's a great, big, beautiful tomorrow]]\\
[[DarkReprise Shining at the end of every day...]]'']]
'''Administrivia/SpoilersOff applies to NightmareFuel pages. Read at your own risk.'''
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* Doris/DOR-15. She's a [[UnnecessarilyCreepyRobot spider-themed robot]] with MindControl powers and plans of world domination. Do the math.
* The BadFuture that is created by Doris. There are no soft colors anywhere, only red, black and green, and humans are Brainwashed slaves that look like zombies - including the Robinsons, who come after Lewis and try to shove him and the time machine over a cliff.
** Bowler Hat Guy either getting killed or enslaved by Doris in the BadFuture; he's seen panicking and desperately declaring that [[EvenEvilHasStandards all he wanted was to ruin Lewis' future and not the massive scale apocalypse he's witnessing]]. He is promptly mobbed and either turned into a slave or [[GoryDiscretionShot torn apart offscreen]] by Doris's clones.
** Remember this?
--->'''Lewis''': [[ThisCannotBe No! This can't be happening! No!]]\\
'''Franny''': Oh, Lewis. It's already happened.
*** By the way, that's not Franny talking. It's DOR-15.
* Wilbur [[RetGone disappearing]] in front of Lewis when the RippleEffect catches up to him. The sky is stormy, the wind is roaring all around them as Wilbur is trying to give him a [[ScottyTime pep]] [[RousingSpeech talk]]. Then wisps begin to come off his body. Wilbur feels his chest as he begins to realize what's happening and says, "Lewis...? ''Leeewwwiss!''" as he vanishes into the sky in a swirl of smoke.
** Considering the fact that when Doris is also removed from existence in this manner, she is ripped apart piece by piece, imagine how painful that must've been for Wilbur.
* Mr. Harrington (one of Lewis's multiple potential adoptive parents) developing an allergic reaction to being sprayed with peanut butter near the beginning is a bit creepy, because of ''[[BodyHorror how swelled he gets.]]''
* The T-Rex the Bowler Hat Guy sics on Lewis may have comedic moments, but he's still a freaking dinosaur, and thus a challenge for even the diverse and technological advanced Robinsons. He's a surprisingly quick thinker, shockingly fast and would have succeeded in capturing Lewis had it not been for the boy getting into a hard-to-reach place. Oh, and never mind capturing Lewis; his appearance is so shocking and sudden, he would have ''eaten Lewis'' had Bowler Hat Guy not demanded he be taken alive, and very nearly did the same to Wilbur.
* Doris' plan for capturing Lewis in the Robinsons’ dining room is much more disturbing than her comrade’s. While the Bowler Hat Guy merely went back in time and brought a T. Rex to capture Lewis, Doris planned to kill the Robinsons by dropping the chandelier on them and then taking Lewis. This is a big indicator that she’s far more dangerous than the Bowler Hat Guy.