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Season guide

Supergirl: Season 6

20 episodes Premiered Mar 30, 2021 Updated Oct 4, 2026

Role: Meticulous television and film archivist. Task: Produce a JSON object for "Supergirl" Season 6. Constraints: Use ONLY provided SYNOPSIS and SOURCES. No invented titles, names, dates, etc. No guessing. Output: Valid JSON only. No markdown, no asterisks, no headings, no bullet points in the text itself (though the primer is an array of 4 strings). overview: 160-220 word factual summary of the season's narrative a

Previously on Supergirl

Season 6 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Picks up essential narrative continuity directly following the events of Supergirl Season 5.
  • ⚡ Character alliances, factions, and personal loyalties undergo significant shifts under escalating stakes.
  • ⚡ Addresses unresolved cliffhangers and thematic mysteries introduced during previous seasons.
  • ⚡ Establishes the primary seasonal conflict that drives serialized character arcs toward the finale.
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Season overview

Role: Meticulous television and film archivist.
Task: Produce a JSON object for "Supergirl" Season 6.
Constraints:
Use ONLY provided SYNOPSIS and SOURCES.
No invented titles, names, dates, etc.
No guessing.
Output: Valid JSON only.
No markdown, no asterisks, no headings, no bullet points in the text itself (though the primer is an array of 4 strings).
overview: 160-220 word factual summary of the season's narrative arc.
primer: Array of exactly 4 concise strings summarizing essential previous lore, character positions, and stakes.
TMDB Synopsis: Kara Danvers balances work as a reporter for CatCo Worldwide Media with her role as Supergirl, keeping National City and Earth safe. She struggles to navigate her day job and friends.
Source [1]: Mentions Kara Zor-El was taken in by the Danv... (cut off).
Source [2]: Series developed by Ali Adler, Greg Berlanti, Andrew Kreisberg. Aired on CBS (2015-2016) and The CW (2016-2021).
Source [3]: Created by Ali Adler, Greg Berlanti, Andrew Kreisberg. Stars Melissa Benoist, Chyler Leigh, David Harewood, Katie McGrath. Kara is Superman's cousin.
Source [4]: Kara Zor-El is 24. Taken in by Danvers family at age 13 after being sent from Krypton. Must learn to embrace powers.
Source [5]: Kara Danvers/Supergirl works for CatCo Worldwide Media and the Department of Extra-Normal Operations (DEO). Mission is to keep National City and Earth safe.
Constraint Check: The prompt asks for a summary of Season 6.
Problem: The provided text does not contain specific details about Season 6's narrative arc. It only contains general series information (Kara's background, her jobs, her identity as Superman's cousin, etc.).
Strict Adherence Rule: "If a detail is not in the provided material, you omit it rather than guess." "You never invent or guess... plot points."
Conflict: I cannot write a 160-220 word summary of Season 6 because the source material only describes the general premise of the series. If I write about the series in general, I am not writing about Season 6. However, if

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Season 6 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 6 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 6: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

20%
80%
Mytharc (4): Crucial lore & season climaxes
Core (16): Character development & subplots
Side Quest (0): Standalone / filler
S6·E1 Mytharc

Rebirth

Mar 30, 2021 · 43 min

As Brainiac lays close to death after trying to stop Lex, Supergirl and team soar in to save him, engaging in an epic battle with Gamemnae. After beating Leviathan, Supergirl turns

S6·E2 Core

A Few Good Women

Apr 6, 2021 · 43 min

As the stakes with Lex are raised higher than ever before, Lena must decide how far she is willing to go to stop her brother. Meanwhile, Supergirl and the team are faced with a cha

S6·E3 Core

Phantom Menaces

Apr 13, 2021 · 42 min

Supergirl makes a new ally. Lena and Lex battle for control of Luthor Corp.

S6·E4 Core

Lost Souls

Apr 20, 2021 · 42 min

Supergirl finds an opportunity to escape from the Phantom Zone but it comes with some dangerous strings attached. Meanwhile, Lena joins the Super Friends on a mission but finds she

S6·E5 Core

Prom Night! (1)

Apr 27, 2021 · 42 min

Nia and Brainy attempt to save Supergirl from the Phantom Zone by time traveling back to Kara's home in 2009. While determined to secure the item needed to help Supergirl, Brainy i

S6·E6 Core

Prom Again! (2)

May 4, 2021 · 42 min

Part two of the flashback episodes pick up where things left off - Young Kara experiences kryptonite for the first time, Nia and Brainy are trapped by invading aliens, and a young

S6·E7 Core

Fear Knot

May 11, 2021 · 42 min

As the Super Friends brave the Phantom Zone to bring Supergirl home, each member of the team is confronted by visions of their worst fear.

S6·E8 Core

Welcome Back, Kara

Aug 24, 2021 · 42 min

As Supergirl and Zor-El make their return to National City, they are determined to keep the Phantom Zone behind them and enjoy being superheroes together. Unfortunately, their over

S6·E9 Core

Dream Weaver

Aug 31, 2021 · 42 min

Kelly meets Joey, a young orphaned alien boy, who is acting out in foster care because he fears there is something wrong with his brother Orlando, who is incarcerated. Kelly asks K

S6·E10 Mytharc

Still I Rise

Sep 7, 2021 · 42 min

Supergirl intervenes when a building in the Heights that was set aside for low income housing is suddenly at risk to be sold to a major corporation. Supergirl recruits Orlando to h

S6·E11 Core

Mxy in the Middle

Sep 14, 2021 · 42 min

Supergirl and team must stop Nyxly from vanquishing a familiar face from Supergirl's past - Mr. Mxyzptlk. Mxy returns and explains Nyxly's dark history to the super team in the bes

S6·E12 Core

Blind Spots

Sep 21, 2021 · 43 min

Kelly is horrified when the Ormfell building implodes, injuring many in the community, including Joey. However, her horror quickly turns to frustration when she realizes that the h

S6·E13 Core

The Gauntlet

Sep 28, 2021 · 42 min

Supergirl and team race Nyxly for control of a magical totem that controls courage. Supergirl and Nyxly battle and each get a piece of the totem but learn the first person to pass

S6·E14 Core

Magical Thinking

Oct 5, 2021 · 42 min

Lena is uncertain about using her magical abilities to help Supergirl retrieve the second totem from Nyxly. William struggles to write a story on the Super Friends that makes both

S6·E15 Core

Hope for Tomorrow

Oct 12, 2021 · 42 min

Supergirl continues to fight Nyxly for the remaining totems but after Nyxly kidnaps William, Supergirl realizes she needs to take a more proactive stance to keep National City safe

S6·E16 Core

Nightmare in National City

Oct 19, 2021 · 42 min

Kara lands her dream story for Catco but when the city is suddenly attacked by a nightmare monster at the same time as her interview, she is forced to take a serious look at her li

S6·E17 Core

I Believe in a Thing Called Love

Oct 26, 2021 · 42 min

When Lex Luthor appears by Nyxly's side, Supergirl and team must deal with the emotional fallout of facing their two biggest foes at the same time. Alex makes plans for the perfect

S6·E18 Core

Truth or Consequences

Nov 2, 2021 · 42 min

Supergirl is determined to keep everyone safe from Lex and Nyxly so she doubles down on patrol, especially as Alex and Kelly's bachelorette party is coming up. Alex is torn between

S6·E19 Mytharc

The Last Gauntlet

Nov 9, 2021 · 42 min

Supergirl and the super friends take drastic action after a loved one is kidnapped by Nyxly and Lex. An unlikely ally steps in to help the team.

S6·E20 Mytharc

Kara

Nov 9, 2021 · 42 min

Supergirl is joined by familiar faces from the past to help her stop Lex and Nyxly for good. Meanwhile, Alex and Kelly prepare to walk down the aisle.

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