“The 100” Season 4 premieres with Clarke (Eliza Taylor) and her friends trying to stop the world from another nuclear radiation.

Clarke, the lead character of the American TV series, is expected to face great challenges in the upcoming season, International Business Times reports.

One most noticeable scene will be facing the troubles of a world threatened with nuclear apocalypse again.

The lead character will be busier in “The 100” Season 4 looking for possible solutions to save the world from radiations emitted by the nuclear plants.

She and her team will be traveling across the globe to search for answers to salvage the global menace on the post-apocalyptic world.

It might be challenging on her part, however, as the audience will need to see her strong will despite the troubling circumstances.

Another thrilling part of the new season will be Octavia. In “The 100” Season 4, her character is anticipated to reveal a darker path after the death of Lincoln (Ricky Whittle) in the previous season.

Marie Avgeropolous confirms, “Next season, you’re going to see Octavia take a lot of really dark turns and uncover some really nasty layers. That will be exciting for me as an actress. She’s always evolving and changing.”

In fact, a quick teaser from the recently concluded season reveals her line “Blood must have blood,” which seems to hint for a bloodier “The 100” Season 4.

Just Jared Jr. cites that Marie Avgeropoulos, who portrayed Octavia in “The 100,” shares her thoughts on losing Ricky Whittle in the series.

She says, “Of course, myself as an actress I was so sad to see Ricky Whittle go. He’s a wonderful man and we have a great friendship.”

“That romance was so deserved. They made so many epic sacrifices for one another. It was the classic, forbidden Romeo and Juliet romance.”

“That’s the way it started and that’s the way it ended. It was horrible and beautiful all at the same time. That’s all they kept doing, is sacrificing their lives for one another.”

“That’s exactly how the story ended and I feel like that chapter in a respectful way, in terms of the romance,” she explains.

“The 100” Season 4 will not air this year. Instead, CBS will release the new season in 2017.