The upcoming episode of Supergirl focuses on Lillian Luthor and how her prison break appears to have been helped by her daughter Lena. Kara and Lena have become close and when given a chance to prove she isn't the same as the rest of her family, she's chosen the path of good so far. But that doesn't work for everyone. Actress Melissa Benoist told EW.com:
Kara is at odds with a lot of people — everyone basically. It's a smart story point to constantly keep people guessing about Lena, what her motives are and what she really wants. She's a Luthor, so can you ever really trust someone who was raised in that environment? I've always appreciated how Kara has given her the benefit of the doubt and trusts her because Lena has proven herself more than once that she wants to make the world a better place and she doesn't want to subscribe to her family's narrative.
Supergirl airs Mondays at 8 PM on the CW.