After spending a few weeks in the Phantom Zone, it looks like Kara's (Melissa Benoist) finally found a way to escape, but it sounds like her journey home is going to be a major challenge with some seriously dangerous strings attached.
Meanwhile, Lena (Katie McGrath) has some serious reservations about her future after she teams up with the Super Friends - Dreamer (Nicole Maines), Brainiac-5 (Jesse Rath), Miss Martian (Sharon Leal), Sentinal (Chyler Leigh), and Martian Manhunter (David Harewood) - on a mission and realizes that she may not necessarily fit in with the team and their ideals.
Check out the promo and promotional stills for Supergirl season 6, episode 4; "Phantom Menace" below:
"Lost Souls" - (9:00-10:00 p.m. ET) (TV-PG, V) (HDTV)
SUPERGIRL FINDS A WAY HOME - Supergirl (Melissa Benoist) finds an opportunity to escape from the Phantom Zone but it comes with some dangerous strings attached. Meanwhile, Lena (Katie McGrath) joins the Super Friends on a mission but finds she disagrees with their plan of action against the Phantoms and wonders if she is truly ready to be a part of the team. Alysse Leite-Rogers directed the episode written by Karen E. Maser & Nicki Holcomb (#604). Original airdate 4/20/2021.