"Supergirl's" debut season is barreling towards its finale, with the penultimate episode of the season airing on Monday night. The episode, titled "Myriad," will see Supergirl go up against the combined might of Non and Indigo all while trying to uncover the potentially catastrophic truth behind Myriad. CBS has released three clips from the episode that focus on Kara's search for truth in the Fortress of Solitude, her confrontation with Maxwell Lord and Eliza Danvers' first meeting with Martian Manhunter.

"Myriad" -- Kara must find a way to free her friends when Non and Indigo use mind control to turn National City's citizens into their own army, on SUPERGIRL, Monday, April 11 (8:00-9:00 PM, ET/PT) on the CBS Television Network.

"Supergirl" airs Mondays at 8 pm EST on CBS. Developed by producers Greg Berlanti, Ali Adler and Andrew Kreisberg, the series stars Melissa Benoist, Calista Flockhart, David Harewood and Chyler Leigh.