On June 18, the Season 3 finale of The CW's hit series Supergirl arrives. However, the newly released synopsis for the episode, titled "Battles Lost and Won," certainly doesn't provide very many clues on what viewers can expect from the climactic clash between the Girl of Steel and the Worldkiller.
Promising "an epic battle for Earth" between Supergirl and Serena, it remains to be seen what else might transpire in the episode. However, judging by the events of this past Monday's penultimate episode, in which we learned that Serena has been contacting Reign directly, things don't appear to bode well for the Last Daughter of Krypton.
Here is The CW's official synopsis for "Battles Lost and Won":
“Battles Lost and Won” — (8:00-9:00 p.m. ET) (Content Rating TBD) (HDTV)SHOCKING SEASON FINALE – Supergirl (Melissa Benoist) and team take on Serena in an epic battle for Earth. Jesse Warn directed the episode written by Robert Rovner & Jessica Queller (#323). Original airdate 6/18/2018.
Airing Mondays at 8 p.m. on The CW, Supergirl stars Melissa Benoist as the Girl of Steel, David Harewood as Martian Manhunter, Mehcad Brooks as Jimmy Olsen, Chyler Leigh as Alex Danvers and Jeremy Jordan as Winn Schott, with appearances by Calista Flockhart as Cat Grant and Tyler Hoechlin as Superman.