Categories: SupergirlSupergirl SpoilersVideos

The Supergirl Season Finale Airs Tonight

Tonight (June 18) marks the end of the third season of Supergirl.

Season 3 ends with an episode titled “Battles Lost and Won” and The CW has released an “Inside” video, an interview with Melissa Benoist, a preview clip, and a trailer to promote it. You can find all of that below.

Below, find some photos and an official description for “Battles Lost and Won.” If you’d like to join the countdown on our forum, you can find it here! And yes, Supergirl will be back for Season 4, where it will be airing on Sundays!

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.

Supergirl

Image 1 of 15

Supergirl -- "Battles Lost And Won" -- Image Number: SPG323a_0042.jpg -- Pictured (L-R): Melissa Benoist as Kara/Supergirl and Chris Wood as Mon-El -- Photo: Katie Yu/The CW -- © 2018 The CW Network, LLC. All Rights Reserved.

Craig Byrne

Craig Byrne has been writing about Superman TV since 1995, when the "Lois & Clark Krypton Club" launched. He founded KryptonSite.com in February 2001, becoming the first fan site for The WB/CW television series Smallville. He also wrote the Official Companion books for Smallville seasons 4-7 as well as the Smallville Visual Guide.

Leave a Comment
Share
Published by
Craig Byrne
Tags: Battles Lost and Wonpreviewpreview clipspreview imagespromoReignseason finaleSupergirlSupergirl Season 3Supergirl Season 4Supergirl spoilerstrailervideo
7 years ago

Recent Posts

Michael Rosenbaum on Smallville Animated, Favorite Lexes & More

Michael Rosenbaum spoke with Bleeding Cool about his version of Lex Luthor on Smallville and…

7 days ago

Salute to Smallville 2026 Adds Erica Durance & Laura Vandervoort

Erica Durance and Laura Vandervoort will be attending the 2026 Salute to Smallville convention in…

2 weeks ago

Jimmy Olsen-Centered TV Spinoff Will NOT Be Called “DC Crime”

The Jimmy Olsen-centered Superman spinoff for HBO Max is confirmed by James Gunn to NOT…

3 weeks ago

DC Crime: Jimmy Olsen-Centered Superman TV Spinoff In Development

A DC Crime series featuring Superman's Jimmy Olsen is being developed for HBO Max.

3 weeks ago

Salute to Smallville 2026 Gold Passes Are Now Available!

Creation Entertainment has announced their 2026 Salute to Smallville in Nashville, Tennessee!

1 month ago

An Original Smallville Cast Member Joins The Boys Spinoff “Vought Rising”

An original Smallville cast member will be appearing on The Boys spinoff Vought Rising.

2 months ago