The world of “The 100” gets bigger than ever when it returns for its third season on The CW in January.

In a new extended trailer, which is nearly three minutes long, Clarke Griffin (Eliza Taylor) finds herself in brand new worlds and face to face with Lexa (Alycia Debnam-Carey), the Grounder commander who kissed her and left her to die in Season 2.

The two are clearly at odds, but Clarke appears to have some issues with everyone, including Bellamy (Bob Morley), who’s drawing concern from everyone for seemingly switching sides, even from his sister Octavia (Marie Avgeropoulos).

Also Read: 'The 100' Season 3 Trailer Teases Clarke in Danger (Video)

Meanwhile, new characters abound. A new Ark survivor (Michael Beach), riles up the Sky People, while all out war among the grounders seems imminent.

“The 100” Season 3 premieres Thursday, Jan. 21 at 9 p.m. ET on The CW.