"You know, it's from Bunker Hill. Remember that one? It's the one where the Brits, uh, thought they had won, but the battle ended up so bloody, that it cost them the war, and it wasn't worth it."
Ben Lockwood to Manchester Black on his grandfather's bayonet
"Bunker Hill" is the eighth episode of the fourth season of Supergirl, and the seventy-third episode overall. It aired on December 2, 2018.


Nia has a powerful dream about Agent Liberty, but refuses to look at it as a prophetic dream and pushes it aside. After noticing something is bothering Nia, Kara enlists Brainy’s help and the two try to persuade Nia to embrace her destiny. Meanwhile, Manchester Black pays Ben Lockwood a menacing visit.[src]


  • In her nightmare, Nia is watching the 1959 film North by Northwest.
  • After Frank says that he is Agent Liberty, Brainy compares the situation to the 1960 film Spartacus, in which a group of soldiers show their loyalty to the titular character by not letting him turn himself over, but all claiming to be Spartacus.
  • When Nia, Kara, and Brainy visit Collinwood, the former compares the deserted streets to the 2013 film The Purge.
  • Manchester calls Supergirl "Pollyanna", referencing the book series of the same name.
  • After swinging a hook to stop Manchester, Brainy mentions the 1991 film Hook.
  • When guiding Nia through her dreams, Brainy accidentally calls her "Nura". This is a reference to Nura Nal, a member of the Legion of Superheroes in the 30th and 31st centuries, known in the comics as Dream Girl.
    • Nia Nal has been confirmed to be Nura's ancestor in the Arrowverse.[2]
  • The episode ends with the cold open from the Elseworlds crossover "Elseworlds, Part 1". Unlike the rest of this episode, this scene was directed by Tom Cavanagh.[1]




  1. 1.0 1.1 "DC Daily Ep.63: Exclusive interview with CW ELSEWORLDS crossover star, LaMonica Garrett" - Facebook
  2. "Supergirl casts Nicole Maines as TV's first transgender superhero" - Entertainment Weekly

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