Intense events are coming when "The 100" returns for its third season.

Recent spoilers say that danger is coming for Clarke Griffin (Eliza Taylor) when the post-apocalyptic sci-fi drama returns for season 3. According to reports, the consequences of all her actions at the end of season 2 are now haunting her.

In the second season finale, Clarke decided to let the radiation coming from the outside of Mount Weather to get into the location of the innocent Mountain Men. This lead to the deaths of a number of innocent Mountain Men.

Clarke's decision to let the brutal occurrence happen was influenced by Lexa (Alycia Debnam-Carey), who betrayed her after being romantically linked to each other. Because of the betrayal, Clarke will face Lexa to confront her about going behind her back.

In the recently released trailer for the upcoming season, Clarke is seen holding a knife against Lexa's throat. However, she still seems to harbor a soft spot for the leader of the Grounders since she lets her go unharmed.

The trailer also shows clips of some of the fan-favorite character of the series. In one of the scenes in the trailer, Octavia (Marie Avgeropoulos) and Jasper (Devon Bostick) are seen grieving an unrevealed loss. Meanwhile, an unidentified grounder is seen attacking Monty (Christopher Larkin) in the promo trip.

"The 100" will also introduce several new characters in season 3, including the rascal warrior from the Grounder tribe named Roan, portrayed by "Black Sails" star Zach McGowan, a new member of the Ark portrayed by "Sons of Anarchy" star Michael Beach, as well as the strong-willed leader of the Ice Nation portrayed by actress Brenda Strong.

The series will premiere on Thursday, Jan. 21, on The CW.