Katie McGrath as Lena Luthor
“Supergirl” executive producer Andrew Kreisberg discussed what fans can expect from Lena Luthor’s (Katie McGrath) storyline in Season 2 of the CW series. The CW

Can Kara (Melissa Benoist) really trust Lena (Katie McGrath)?

In last night’s Season 2, episode 12 of “Supergirl,” Lena was blamed for the escape of Metallo (Frederick Schmidt) and her stepmother Lillian (Brenda Strong) from prison. L-Corp’s CEO was arrested when the National City Police Department obtained a surveillance video showing Lena securing synthetic Kryptonite, which Metallo used to break out of prison. But toward the end of the installment, Kara, with the help of Winn (Jeremy Jordan), discovered that L-Corp’s security cameras were hacked, and it was really Cyborg Superman (David Harewood) who got hold of the synthetic Kryptonite from L-Corp.

At the end of the installment, Lena was ultimately found not guilty, and she thanked Kara for standing up for her when the rest of the world thought that she’s evil just like all Luthors. But in her final shot in the episode, Lena seemed like she has something up her sleeve. Is she hiding something and playing a long game with Supergirl?

“That’s Lena’s journey for the series,” executive producer Andrew Kreisberg told Entertainment Weekly. “Are we who others think we are? Are we who we want to be? She’s not adopted, she’s actually truly a Luthor by blood, and is it nature vs. nurture? The audience’s perception of a character named Luthor mirrors the characters’ perception. ‘If your name is Luthor, you must be bad. That name is synonymous with evil.’”

Kreisberg added that Lena’s ongoing storyline on the series is going to highlight one main difference between Supergirl and her cousin, Superman (Tyler Hoechlin).

“Watching every character have their moment with [Lena] where they doubt and do they believe, it’s so interesting,” Kreisberg said. “Even Clark, when we had Superman on, didn’t trust her because of that name. It’s the difference between Kara and Clark, in our interpretation of these characters, is that Superman is a little jaded after doing this for so long, and Kara is still wide-eyed and fresh-faced and still believes in the goodness in people. Whether or not Kara and Supergirl’s belief in Lena is going to be enough to overcome the corrupting influence of Lillian is the plot of the series.”

“Supergirl’s” next episode (Season 2, episode13) airs on Monday, Feb. 20 at 8 p.m. EST on The CW.