"Solitude" -- Kara travels to Superman's Fortress of Solitude in hopes of learning how to defeat Indigo (Laura Vandervoort, pictured), a dangerous being who can transport via the Internet and who has a connection to Kara's past, on SUPERGIRL, Monday, Feb. 29 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Photo: Michael Yarish/CBS ©2016 CBS Broadcasting, Inc. All Rights Reserved

"Solitude" -- Kara (Melissa Benoist, left) travels to Superman's Fortress of Solitude in hopes of learning how to defeat Indigo (Laura Vandervoort, right), a dangerous being who can transport via the Internet and who has a connection to Kara's past, on SUPERGIRL, Monday, Feb. 29 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Photo: Michael Yarish/CBS ©2016 CBS Broadcasting, Inc. All Rights Reserved

"Solitude" -- Kara travels to Superman's Fortress of Solitude in hopes of learning how to defeat Indigo (Laura Vandervoort, pictured), a dangerous being who can transport via the Internet and who has a connection to Kara's past, on SUPERGIRL, Monday, Feb. 29 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Photo: Michael Yarish/CBS ©2016 CBS Broadcasting, Inc. All Rights Reserved

"Solitude" -- Kara travels to Superman's Fortress of Solitude in hopes of learning how to defeat Indigo (Laura Vandervoort, pictured), a dangerous being who can transport via the Internet and who has a connection to Kara's past, on SUPERGIRL, Monday, Feb. 29 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Photo: Michael Yarish/CBS ©2016 CBS Broadcasting, Inc. All Rights Reserved

"Solitude" -- Kara travels to Superman's Fortress of Solitude in hopes of learning how to defeat Indigo (Laura Vandervoort, pictured), a dangerous being who can transport via the Internet and who has a connection to Kara's past, on SUPERGIRL, Monday, Feb. 29 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Photo: Michael Yarish/CBS ©2016 CBS Broadcasting, Inc. All Rights Reserved

"Solitude" -- Kara travels to Superman's Fortress of Solitude in hopes of learning how to defeat Indigo (Laura Vandervoort, pictured), a dangerous being who can transport via the Internet and who has a connection to Kara's past, on SUPERGIRL, Monday, Feb. 29 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Photo: Michael Yarish/CBS ©2016 CBS Broadcasting, Inc. All Rights Reserved

"Solitude" -- Kara travels to Superman's Fortress of Solitude in hopes of learning how to defeat Indigo, a dangerous being who can transport via the Internet and who has a connection to Kara's past, on SUPERGIRL, Monday, Feb. 29 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Pictured left to right: Mehcad Brooks and Melissa Benoist Photo: Darren Michaels/CBS ©2016 CBS Broadcasting, Inc. All Rights Reserved

"Solitude" -- Kara travels to Superman's Fortress of Solitude in hopes of learning how to defeat Indigo, a dangerous being who can transport via the Internet and who has a connection to Kara's past, on SUPERGIRL, Monday, Feb. 29 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Pictured left to right: Mehcad Brooks and Melissa Benoist Photo: Darren Michaels/CBS ©2016 CBS Broadcasting, Inc. All Rights Reserved

"Solitude" -- Kara travels to Superman's Fortress of Solitude in hopes of learning how to defeat Indigo, a dangerous being who can transport via the Internet and who has a connection to Kara's past, on SUPERGIRL, Monday, Feb. 29 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Pictured left to right: Mehcad Brooks and Melissa Benoist Photo: Darren Michaels/CBS ©2016 CBS Broadcasting, Inc. All Rights Reserved

"Solitude" -- Kara travels to Superman's Fortress of Solitude in hopes of learning how to defeat Indigo, a dangerous being who can transport via the Internet and who has a connection to Kara's past, on SUPERGIRL, Monday, Feb. 29 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Pictured left to right: Mehcad Brooks and Melissa Benoist Photo: Darren Michaels/CBS ©2016 CBS Broadcasting, Inc. All Rights Reserved

"Solitude" -- Kara travels to Superman's Fortress of Solitude in hopes of learning how to defeat Indigo, a dangerous being who can transport via the Internet and who has a connection to Kara's past, on SUPERGIRL, Monday, Feb. 29 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Pictured left to right: Melissa Benoist and Mehcad Brooks Photo: Darren Michaels/CBS ©2016 CBS Broadcasting, Inc. All Rights Reserved