“The 100” faces its toughest post-apocalyptic challenge yet – the end of the world, again – and the people trying to figure out a solution just keep getting more bad news.

In this exclusive clip (above) from Wednesday’s episode, Raven (Lindsey Morgan) has something to tell Clarke (Eliza Taylor) and Bellamy (Bob Morley): Turns out, ALIE’s timeline of six months until they’re all annihilated by nuclear radiation was incorrect. They have probably two months, tops.

They can triple man hours and make that accelerated deadline, but that doesn’t solve their other problem: Not everyone is going to be able to have a spot inside the sealed habitat they’re building.

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Clarke has been tasked with making the list of who gets entry, and Raven tries to convince her friend to start working on the list by dropping a hard truth: “Choosing who gets to live or die is your specialty.” Ouch.

“The 100” airs Wednesdays at 9 p.m. ET on The CW.