10 WTF TV Episodes That Came Totally Out Of Nowhere

10. "Chapter Seven: The Lost Sister" - Stranger Things

Stranger Things' hotly-anticipated second season was largely well received by fans and critics alike, though just about everybody agreed how utterly out of place the season's seventh episode, "The Lost Sister," truly felt.

Both the worst and weirdest episode in the show's history, The Lost Sister saw Eleven (Millie Bobby Brown) travelling to Chicago where she met Kali aka Eight (Linnea Berthelsen), a fellow test subject from the Hawkins Lab.

Stylistically, tonally, and thematically, the episode was a major departure from everything viewers had seen up to this point, ditching the nostalgia-soaked '80s kitsch vibe in favour of a grittier, darker outing set in downtown Chicago.

Many fans suspected that the episode was effectively a backdoor pilot for a Kali-starring spin-off series, though creators the Duffer Brothers later stated that this wasn't in fact the case.

Even so, many were miffed that Eleven was ripped away from her pals and taken out of her element for an entire episode, not to mention how goofy and unappealing Kali's gang of young cronies were.