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Supergirl -- "In Plain Sight" -- Image Number: SPG504a_0325r.jpg -- Pictured (L-R): Chyler Leigh as Alex Danvers and Melissa Benoist as Kara/Supergirl -- Photo: Sergei Bachlakov/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.

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Supergirl -- "In Plain Sight" -- Image Number: SPG504a_0358r.jpg -- Pictured (L-R): Chyler Leigh as Alex Danvers and Azie Tesfai as Kelly Olsen -- Photo: Sergei Bachlakov/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.

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Supergirl -- "In Plain Sight" -- Image Number: SPG504b_0065r.jpg -- Pictured (L-R): Jesse Rath as Brainiac-5, Azie Tesfai as Kelly Olsen, Mehcad Brooks as James Olsen/Guardian, Chyler Leigh as Alex Danvers and Melissa Benoist as Kara/Supergirl -- Photo: Dean Buscher/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.

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Supergirl -- "In Plain Sight" -- Image Number: SPG504b_0094r.jpg -- Pictured: Mehcad Brooks as James Olsen/Guardian (center) -- Photo: Dean Buscher/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.

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Supergirl -- "In Plain Sight" -- Image Number: SPG504b_0118r.jpg -- Pictured: Mehcad Brooks as James Olsen/Guardian (center) -- Photo: Dean Buscher/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.

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Supergirl -- "In Plain Sight" -- Image Number: SPG504b_0174r.jpg -- Pictured: Melissa Benoist as Kara/Supergirl -- Photo: Dean Buscher/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.

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Supergirl -- "In Plain Sight" -- Image Number: SPG504b_0247r.jpg -- Pictured (L-R): Chyler Leigh as Alex Danvers, Azie Tesfai as Kelly Olsen, Melissa Benoist as Kara/Supergirl, Jesse Rath as Brainiac-5, Nicole Maines as Nia Nal/Dreamer and Mehcad Brooks as James Olsen/Guardian -- Photo: Dean Buscher/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.

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Supergirl -- "In Plain Sight" -- Image Number: SPG504b_0253r.jpg -- Pictured: Azie Tesfai as Kelly Olsen -- Photo: Dean Buscher/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.

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Supergirl -- "In Plain Sight" -- Image Number: SPG504b_0295r.jpg -- Pictured (L-R): Azie Tesfai as Kelly Olsen and Chyler Leigh as Alex Danvers -- Photo: Dean Buscher/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.

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Supergirl -- "In Plain Sight" -- Image Number: SPG504b_0350r.jpg -- Pictured: Nicole Maines as Nia Nal/Dreamer -- Photo: Dean Buscher/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.

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Supergirl -- "In Plain Sight" -- Image Number: SPG504b_0434r.jpg -- Pictured (L-R): Jesse Rath as Brainiac-5, Melissa Benoist as Kara/Supergirl and David Harewood as Hank Henshaw/JÕonn JÕonzz -- Photo: Dean Buscher/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.

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Supergirl -- "In Plain Sight" -- Image Number: SPG504b_0000r.jpg -- Pictured: -- Photo: Dean Buscher/The CW -- © 2019 The CW Network, LLC. All Rights Reserved.