The upcoming, long-gestating "Snowpiercer" TV series has been renewed for a second season — before it has even aired the first — and is moving networks.

WarnerMedia announced that the reboot/adaptation of the post-apocalyptic 2013 film is moving from TNT to sister network TBS.

The show, which stars Jennifer Connelly and Daveed Diggs, now has a premiere date of spring 2020.

"Snowpiercer" follows the passengers of the perpetually-moving titular train, which carries the remnants of humanity seven years after the world has become a frozen wasteland.

The shuffle comes as WarnerMedia is tweaking its various brands. TBS had formerly been known for its comedies, like "Angie Tribeca" and "Wrecked." Meanwhile, TNT focused on dramas like "The Alienist" and "Animal Kingdom."

"'Snowpiercer' is the perfect show to kick off TBS' entry into dramas with intricate storytelling, stunning visuals and first-class acting,” TBS and TNT GM Brett Weitz said. "We believe in the longevity of this series and that audiences will be amazed by the fantastical world that brings to life such relevant social, political and environmental issues."

In addition to moving homes, "Snowpiercer" underwent a change in showrunners in January 2018 when Josh Friedman, who wrote the pilot, exited due to "creative differences." He was replaced by "Orphan Black’s" Graeme Manson.