Supergirl made the leap from CBS to The CW for the show's second season, and the shift in network resulted in a number of changes to the series itself -- most notably, the loss of Calista Flockhart as Cat Grant, as well as the fact that it can more easily connect with fellow DC Comics series Arrow, The Flash, and Legends of Tomorrow. Still more changes have been revealed over the course of season 2 -- though they're not necessarily the result of the network change -- including the introduction of Daxam refugee Mon-El (Chris Wood) and Supergirl's focus on alien culture as intergalactic refugees seek asylum on Earth.

The winter finale for Supergirl season 2 saw the defeat of the anti-alien organization CADMUS, but teased a potential interstellar threat with the reveal that an alien spacecraft was searching for Mon-El -- and he previously mentioned a secret to Kara (Melissa Benoist). It's unclear when that secret will be be revealed, but a new trailer for the Supergirl season 2 winter premiere teases plenty of action and drama in the second half of the season.

The CW unveiled the first trailer for Supergirl's winter premiere [above], the episode titled 'Supergirl Lives', which was directed by Kevin Smith. The video features a number of action sequences focused on Supergirl, as well as a shot of James Olsen (Mehcad Brooks) suited up as Guardian, with the tagline, "Truth, Justice, and the American Way." On a more mysterious note, the trailer also includes Mon-El saying, "If you go looking for trouble, you can always find a way," as well as Supergirl injured on what appears to be a difference planet.

Supergirl Season 2 Winter Premiere Trailer

Although an official synopsis for 'Supergirl Lives' hasn't been released yet, Smith has been vocal on social media about certain aspects of the episode. In fact, Smith first revealed the episode title -- which is a reworked version of the title for the Superman movie script he penned, Superman Lives. The writer/director has additionally stated, after reading the episode's script, "It’s pure comic book and science fiction fantasy." Meanwhile, his daughter, Harley Quinn Smith, took to social media to announce she'll appear in 'Supergirl Lives', though she doesn't seem to be in the trailer.

Still, though Supergirl fans may not know exactly what to expect from the plot of 'Supergirl Lives', based on the new trailer it's clear the show's winter premiere will provide a massive dose of action, drama, and fun. Supergirl co-star Jeremy Jordan (who plays Winn Schott) teased as much, previewing a big episode to welcome the Girl of Steel back to television in January. Of course, fans won't get the chance to see 'Supergirl Lives' for themselves until late January, but this new season 2 trailer promises an exciting winter premiere of Supergirl.

Next: 15 Biggest Differences Between Supergirl TV Show And The Comics

Supergirl season 2 continues with 'Supergirl Lives' Monday January 23rd @8pm on The CW.

Source: The CW