After a high-stakes season two finale, what exactly The CW's Girl of Steel will do next has been a mystery. But now, fans can get a look at what to expect in Supergirl's third season, thanks to a trailer released during the show's San Diego Comic-Con panel.

You can check out the trailer above.

In the month's since Supergirl's season finale, the show has gone through quite a few major changes. Odette Annabelle will be joining the show as Reign, the Big Bad teased in season two's closing moments. Smallville's Erica Durance will be making a return to the world of DC Comics properties, taking over the role of Alura, Kara Danvers' birth mother, from Laura Benanti. In addition to Benanti, season two fan-favorite Floriana Lima will be departing the show, appearing in a handful of season three episodes to wrap up Maggie Sawyer's arc.

Supergirl season three will premiere on Monday, October 9th, at 8/7c, on The CW.

"Ridding National City of Queen Rhea and her Daxamite army was a major win for Supergirl, but one that came at a significant cost, as Kara was forced to sacrifice her budding relationship with Mon-El. When season three returns with all-new supercharged adventures this fall on The CW, Kara and team will come up against a new threat in the form of DC Worldkiller, Reign. Want to know more about Reign and what she has in store for the Girl of Steel? Join the series’ cast and creative team for a special video presentation, followed by a Q&A where they’ll discuss this hot topic and more!"

Based on the DC Comics character, Supergirl AKA Kara Zor-El (Melissa Benoist), decides to embrace her superhuman abilities and become the hero who she was always meant to be on The CW series, Supergirl.

Distributed worldwide by Warner Bros. International Television Distribution, SUPERGIRL is executive produced by Greg Berlanti (“Arrow,” “The Flash”), Ali Adler (“The New Normal”), Andrew Kreisberg (“The Flash,” “Arrow”) and Sarah Schechter (“Blindspot,” “The Mysteries of Laura”). Supergirl is based on the characters created by Jerry Siegel and Joe Shuster and appearing in DC Comics, by special arrangement with the Jerry Siegel Family.

MORE SUPERGIRL NEWS: Arrow, Supergirl, Flash, And More Adorn Comic-Con TV Guide Covers / The CW/DC Crossover Will Be Bigger And Different This Year / Stephen Amell Would Like To Do More With Supergirl's Melissa Benoist / Supergirl Casts Smallville's Erica Durance In a Surprising Role