The synopsis for the final season premiere of Supergirl, titled "Rebirth," has been released, and there are major allusions to what's in store for Lex Luthor.

As revealed by the synopsis, after defeating Leviathan, Supergirl goes after Luthor, who has brainwashed half of the world with the Obsidian platform to "love him and follow him at all costs," regardless of what vile deeds he does. This forces Lena Luthor to turn to the Super Friends for help, but the Girl of Steel comes to the conclusion that sacrificing herself is the only way to defeat Lex.

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The CW's official synopsis for "Rebirth" is below:

SEASON PREMIERE - As Braniac (Jesse Rath) lays close to death after trying to stop Lex (Jon Cryer), Supergirl (Melissa Benoist) and team soar in to save him, engaging in an epic battle with Gamenmae (guest start Cara Buono). After beating Leviathan, Supergirl turn her attention to Lex (Jon Cryer) who has used the Obsidian platform to brainwash half the world to love him and follow him at all costs, no matter what horrible things he does. Knowing how dangerous this makes her brother, Lena (Katie McGrath) enlists the entire team - Alex (Chyler Leigh), J’onn (David Harewood), Dreamer (Nicole Maines), Kelly (Azie Tesfair) and Braniac - to help, but Supergirl realizes that the only way to truly stop Lex is to sacrifice herself. Jesse Warn directed the episode with story by Robert Rovner & Jessica Queller and teleplay by Jay Faerber & Jess Kardoes (#601).

Supergirl stars Melissa Benoist as Kara Danvers, David Harewood as Martian Manhunter, Chyler Leigh as Alex Danvers, Nicole Maines as Dreamer and Jesse Rath as Brainiac-5. Season 6 premieres March 30 at 9 p.m. ET/PT on The CW.

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Source: The CW