The CW has released an extended promotional trailer for the 17th episode of Season 3 of “Supergirl”.
Titled “Trinity”, this episode is scheduled to air on The CW in the USA on Monday, May 7 at 8.00pm ET/PT.
SUPERGIRL TAKES ON ALL THREE WORLDKILLERS
Still reeling after learning about Lena’s (Katie McGrath) secret, Supergirl (Melissa Benoist) asks Guardian (Mehcad Brooks) for a favor that could alter his relationship with Lena forever. Meanwhile, with all three Worldkillers united, Supergirl and the team brace for an epic battle.
Caitlin Parrish & Erica Weiss directed the episode with story by Jessica Queller and teleplay by Caitlin Parrish & Derek Simon.