When Kara is captured by CADMAS, its up to Lena Luther to find out her secret and save her before its too late
(Supercorp (LenaxKara) fanfiction)
(Combines parts of seasons 1 and 2 along with a bit of my own story line)
Lex has escaped from prison just around the same time Kara Danvers has gone missing. The strangest person comes to her for help, claiming that her maniacal brother has captured not just Kara, but Supergirl as well.
Lena Luthor must confront her intensifying attracting to Kara as some interesting things reveal themselves.