New book, new battles. Last season, The 100 ended with a series-altering finale that marked the end of "Book One" and set the stage for a whole new world in Season 6... literally. With Earth fully uninhabitable thanks to the general terribleness of humanity (and a few real poor choices from Clarke and Co. along the way,) our survivors are landing on a new planet, but it looks like the gorgeous and inviting land known as "Sanctum" might not be all it's cracked up to be. After all, it wouldn't be The 100 if there wasn't some great new sci-fi terror waiting around the corner, and The CW has revealed the first glimpse at those great new terrors in the first trailer for The 100 Season 6.

And oh my, what a juicy trailer it is. For the first time in their lives, Clarke and the gang land on a functioning planet that, not only supports human life but seems to support a human society as technologically advanced as the world before Praimfaya (aka, the nuclear apocalypse that wiped out Earth in the first place).

But a paradise, it is not. In addition to the general classic 100 drama (everyone's mad at Clarke, the Blakes have beef, Kane and Abby are loveable megalomaniacs, etc.,) Sanctum seems to have a few significant problems of its own like *checks notes* "eclipse-induced psychosis".

Well, that doesn't sound good. Then there's the matter of the people running around the woods in creepy masks saying shit like "the harder you fight the faster you die," and there's also the fact that the man in charge of Sanctum doesn't seem to have a single ounce of faith that Earthlings aren't going to totally fuck up the planet. And you know what, dude? Fair enough. They totally deserve that. All the same, it's bad news for the gang, so it looks like you want to brace yourself for another fight for survival -- now with dance clubs!

The 100 Season 6 premieres on The CW, April 30. Watch the extended trailer below, followed by a batch of first-look images via TVLine.