With Kara Danvers (Melissa Benoist) still very much trapped in the Phantom Zone - and possibly expected to stay there for more than a few episodes - it'll be up to her ever-loyal Superfriends to keep National City safe for the foreseeable future.
Next week's installment of Supergirl will see the Martian Manhunter (David Harewood) rally the team as they try to track down an escaped Phantom and put him away before he can cause too much damage. However, that's probably going to be a lot easier said than done with Alex (Chyler Leigh) still reeling from her sister's disappearance.
Meanwhile, despite her seemingly doomed predicament, Kara will make a new ally in the cold hell known as the Phantom Zone, while back in the city, Lena (Katie McGrath) and Lex (Jon Cryer) battle for control of Luthor Corp.
Check out the promo and promotional stills from episode three, titled "Phantom Menace," below:
"Phantom Menaces" - (9:00-10:00 p.m. ET) (TV-PG, V) (HDTV)
BATTLE OF WITS - Supergirl (Melissa Benoist) makes a new ally. Lena (Katie McGrath) and Lex (guest star Jon Cryer) battle for control of Luthor Corp. Sudz Sutherland directed the episode written by Dana Horgan & Emilio Ortega Aldrich (#603). Original airdate 4/13/2021.