Supergirl Asks The Guardian For Help In New Supergirl “Trinity” Promo Photos

New promo photos from the new episode of Supergirl have been released. This new episode is titled “Trinity” and it will air on May 7.

In this new episode, “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.”

Source: Katie Yu/Jack Rowand/The CW