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Supergirl -- "Back From The Future Ð Part One" -- Image Number: SPG511A_0160b.jpg -- Pictured (L-R): Katie McGrath as Lena Luthor, Jon Cryer as Lex Luthor and Jesse Rath as Brainiac-5 -- Photo: Dean Buscher/The CW -- © 2020 The CW Network, LLC. All rights reserved.

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Supergirl -- "Back From The Future Ð Part One" -- Image Number: SPG511A_0293b.jpg -- Pictured: Jon Cryer as Lex Luthor -- Photo: Dean Buscher/The CW -- © 2020 The CW Network, LLC. All rights reserved.

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Supergirl -- "Back From The Future Ð Part One" -- Image Number: SPG511A_0392b.jpg -- Pictured (L-R): Jesse Rath as Brainiac-5 and Jon Cryer as Lex Luthor -- Photo: Dean Buscher/The CW -- © 2020 The CW Network, LLC. All rights reserved.

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Supergirl -- "Back From The Future Ð Part One" -- Image Number: SPG511B_0043b.jpg -- Pictured: Julie Gonzalo as Andrea Rojas/Acrata -- Photo: Dean Buscher/The CW -- © 2020 The CW Network, LLC. All rights reserved.

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Supergirl -- "Back From The Future Ð Part One" -- Image Number: SPG511B_0158b.jpg -- Pictured (L-R): Nicole Maines as Nia Nal/Dreamer and Jesse Rath as Brainiac-5 -- Photo: Dean Buscher/The CW -- © 2020 The CW Network, LLC. All rights reserved.

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Supergirl -- "Back From The Future Ð Part One" -- Image Number: SPG511B_0195b.jpg -- Pictured: Jeremy Jordan as Winn Schott -- Photo: Dean Buscher/The CW -- © 2020 The CW Network, LLC. All rights reserved.

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Supergirl -- "Back From The Future Ð Part One" -- Image Number: SPG511B_0204b.jpg -- Pictured: Nicole Maines as Nia Nal/Dreamer -- Photo: Dean Buscher/The CW -- © 2020 The CW Network, LLC. All rights reserved.

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Supergirl -- "Back From The Future Ð Part One" -- Image Number: SPG511B_0226b.jpg -- Pictured: Melissa Benoist as Kara/Supergirl -- Photo: Dean Buscher/The CW -- © 2020 The CW Network, LLC. All rights reserved.

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Supergirl -- "Back From The Future Ð Part One" -- Image Number: SPG511B_0234b.jpg -- Pictured (L-R): Julie Gonzalo as Andrea Rojas/Acrata and Melissa Benoist as Kara/Supergirl -- Photo: Dean Buscher/The CW -- © 2020 The CW Network, LLC. All rights reserved.

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Supergirl -- "Back From The Future Ð Part One" -- Image Number: SPG511B_0266b.jpg -- Pictured (L-R): Melissa Benoist as Kara/Supergirl and Julie Gonzalo as Andrea Rojas/Acrata -- Photo: Dean Buscher/The CW -- © 2020 The CW Network, LLC. All rights reserved.

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Supergirl -- "Back From The Future Ð Part One" -- Image Number: SPG511B_0316b.jpg -- Pictured (L-R): Nicole Maines as Nia Nal/Dreamer, Jeremy Jordan as Winn Schott, Jesse Rath as Brainiac-5 and Chyler Leigh as Alex Danvers -- Photo: Dean Buscher/The CW -- © 2020 The CW Network, LLC. All rights reserved.

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Supergirl -- "Back From The Future Ð Part One" -- Image Number: SPG511B_0350b.jpg -- Pictured: Melissa Benoist as Kara/Supergirl -- Photo: Dean Buscher/The CW -- © 2020 The CW Network, LLC. All rights reserved.

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Supergirl -- "Back From The Future Ð Part One" -- Image Number: SPG511B_0362b.jpg -- Pictured: Chyler Leigh as Alex Danvers -- Photo: Dean Buscher/The CW -- © 2020 The CW Network, LLC. All rights reserved.

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Supergirl -- "Back From The Future Ð Part One" -- Image Number: SPG511C_0001.jpg -- Pictured (L-R): Jeremy Jordan as Winn Schott and Chyler Leigh as Alex Danvers -- Photo: The CW -- © 2020 The CW Network, LLC. All rights reserved.

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Supergirl -- "Back From The Future Ð Part One" -- Image Number: SPG511C_0002.jpg -- Pictured (L-R): Melissa Benoist as Kara/Supergirl, Jeremy Jordan as Winn Schott and Chyler Leigh as Alex Danvers -- Photo: The CW -- © 2020 The CW Network, LLC. All rights reserved.

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Supergirl -- "Back From The Future Ð Part One" -- Image Number: SPG511C_0003.jpg -- Pictured (L-R): Chyler Leigh as Alex Danvers, Melissa Benoist as Kara/Supergirl, Jeremy Jordan as Winn Schott and David Harewood as Hank Henshaw/JÕonn JÕonzz -- Photo: The CW -- © 2020 The CW Network, LLC. All rights reserved.