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Poster for Crossover: Duet
2016–17 season · Mar. 2017

Crossover: Duet

Barry and Kara trapped in a musical

Runtime1h24Where to watchTBCIn your marathonnot seen yet
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Do you need to watch it?

Yes. It's in the Main story, the list of only what moves the plot forward to the end of the saga.

Where it falls in the order

  • Main story19 of 39
  • Chronological27 of 65
  • Everything30 of 79
  • The Flash only12 of 26
  • Supergirl only7 of 18
BeforeSupergirl · S2 · ep. 9–15AfterSupergirl · S2 · ep. 17–22

Episodes, in this order

  1. Supergirl S2E16
  2. The Flash S3E17
Spoilers for this title

Quick recap

The Music Meister, a mysterious being, puts Kara in a coma, and her team brings her to Barry's Earth for help. The villain does the same to Barry. Both wake up powerless inside a 1940s musical, as nightclub singers for gangster Cutter Moran. There they help Tommy and Millie, a couple from rival families, go public, which sparks a gang war. Barry and Kara are shot in the dream and are dying for real when their friends come in to save them. They wake up and learn the Music Meister was using their powers to rob banks. In the end, Barry sings to Iris and proposes again.

No spoilersOpens once you mark the title as seen.
3 easter eggs

Hidden details

  1. CameoA Glee reunion

    Grant Gustin and Melissa Benoist were both on Glee. The Music Meister, the villain who traps them in a musical, is Darren Criss, another Glee star.

    source ↗
  2. Behind the scenesWho wrote "Super Friend"

    Barry and Kara's comic duet "Super Friend" was written by Rachel Bloom, creator and star of Crazy Ex-Girlfriend.

    source ↗
  3. Behind the scenesThe proposal song has Oscar pedigree

    "Runnin' Home to You," which Barry sings to Iris, is by Benj Pasek and Justin Paul, fresh off their Oscar for La La Land's "City of Stars."

    source ↗
No spoilersThe easter eggs give away parts of the title. They open once you mark it as seen.

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