Supergirl -- "Suspicious Minds" -- Image Number: SPG410a_0043b.jpg -- Pictured: Nicole Maines as Nia Nal -- Photo: Shane Harvey/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.

Supergirl -- "Suspicious Minds" -- Image Number: SPG410a_0047b.jpg -- Pictured: Nicole Maines as Nia Nal -- Photo: Shane Harvey/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.

Supergirl -- "Suspicious Minds" -- Image Number: SPG410a_0064b.jpg -- Pictured (L-R): Jesse Rath as Brainiac-5 and Nicole Maines as Nia Nal -- Photo: Shane Harvey/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.

Supergirl -- "Suspicious Minds" -- Image Number: SPG410a_0140b.jpg -- Pictured: Nicole Maines as Nia Nal -- Photo: Shane Harvey/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.

Supergirl -- "Suspicious Minds" -- Image Number: SPG410a_0229b.jpg -- Pictured (L-R): Jesse Rath as Brainiac-5 and Nicole Maines as Nia Nal -- Photo: Shane Harvey/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.

Supergirl -- "Suspicious Minds" -- Image Number: SPG410b_0007b.jpg -- Pictured: April Parker Jones as Colonel Haley -- Photo: Shane Harvey/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.

Supergirl -- "Suspicious Minds" -- Image Number: SPG410b_0039b.jpg -- Pictured: April Parker Jones as Colonel Haley -- Photo: Shane Harvey/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.

Supergirl -- "Suspicious Minds" -- Image Number: SPG410b_0062b.jpg -- Pictured: Chyler Leigh as Alex Danvers -- Photo: Shane Harvey/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.

Supergirl -- "Suspicious Minds" -- Image Number: SPG410b_0124b.jpg -- Pictured: Melissa Benoist as Kara/Supergirl -- Photo: Shane Harvey/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.

Supergirl -- "Suspicious Minds" -- Image Number: SPG410b_0152b.jpg -- Pictured: Chyler Leigh as Alex Danvers -- Photo: Shane Harvey/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.

Supergirl -- "Suspicious Minds" -- Image Number: SPG410b_0174b.jpg -- Pictured: Melissa Benoist as Kara/Supergirl -- Photo: Shane Harvey/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.

Supergirl -- "Suspicious Minds" -- Image Number: SPG410b_0228b.jpg -- Pictured (L-R): April Parker Jones as Colonel Haley, Chyler Leigh as Alex Danvers and Melissa Benoist as Kara/Supergirl -- Photo: Shane Harvey/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.

Supergirl -- "Suspicious Minds" -- Image Number: SPG410b_0316b.jpg -- Pictured (L-R): Chyler Leigh as Alex Danvers and Melissa Benoist as Kara/Supergirl -- Photo: Shane Harvey/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.