Meanwhile, Superman (guest star Tyler Hoechlin) returns and Cat Grant (guest star Calista Flockhart) offers Supergirl some sage advice.
Sharon Leal’s Miss Martian is expected to return, while the Season 2 finale is also expected to hint at a potential Season 3 villain.
The CW should come forth with an extended trailer for Supergirl’s Season 2 finale soon, but stay tuned for The CW’s Upfront announcements in the meantime.
Supergirl (Melissa Benoist) challenges Rhea (guest star Teri Hatcher) to battle to save National City.