: Eleven's "mentor" in the lab is revealed to be 001 , the powerful first subject of Dr. Brenner's experiments.
The "good feature" or massive plot twist in , " The Massacre at Hawkins Lab ," is the revelation that Henry Creel (Victor Creel’s son), Number One (the first child experiment), and Vecna are all the same person. The Triple Reveal [S4E7] Plot Twist
Critics and fans often cite this episode as the best of the series due to its flawless execution of parallel storylines: Stranger Things Season 4 Episode 7 Ending Explained : Eleven's "mentor" in the lab is revealed
This twist recontextualizes the entire series by connecting the current villain to the origins of Eleven's powers. The Triple Reveal Critics and fans often cite
: Eleven defeats 001 by pushing him through a portal into the Upside Down , where the dimension’s environment transforms him into the monstrous Vecna . Why It Is Highly Rated
: 001 is actually the young Henry Creel , who was not killed by his father but was taken by Brenner after murdering his own mother and sister.