The CW has released the Supergirl Season 6 trailer which is for the show's final season.
Supergirl Season 6 will be replacing Superman & Lois for a while due to covid halting production on Superman & Lois.
Here is a description for the first episode of Supergirl Season 6:
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 sher 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 returns Tuesday, March 30th at 9 pm ET following a new episode of The Flash.