Where does the season begin?Season 4 starts right where season 3s finale ended, Rothenberg says.
Clarke has just pulled the lever, she has saved the day [and] destroyed A.L.I.E.
(Erica Cerra) as her friends in the real world kept her alive long enough to do it.

Credit: Diyah Pera/The CW
Trouble is, she knows the world will end.
But first, theyll have to deal with a changing of the guard at Polis.
What will the second Doomsday be like?In a word?

Diyah Pera/The CW
The story becomes mans inhumanity to man, and mans humanity to man… Can you transcend that?
Or will you figure out a way to link arms and become one people?
Clarke is an idea person, shes always looking for a third way.

Diyah Pera/The CW
Bellamy, meanwhile, will struggle with his guilt.
Thats something that still haunts him, certainly, and now hes given a second chance, Rothenberg says.
Were not going to tell the story differently.

Diyah Pera/The CW
Thats the kind of world that it is and will always be.
The 100returns Wednesday, Feb. 1, at 9 p.m.
ET on The CW.