'The 100' season 4 spoilers, plot news: Premiere title revealed; Raven to step up?

A leaked image has revealed the title of the premiere episode of "The 100" season 4. A title page of the script shows that the season opener will be called "Echoes."

Admittedly, there's not much to take away from the title although Melty surmises it references to the fate of humanity following the events of the season 3 finale.

ALIE (Erica Cerra) has warned Clarke (Eliza Taylor) of a nuclear meltdown that will render the Earth inhabitable in a matter of six months, and in "The 100" season 4, Clarke and the group will do their best not to let that happen.

Only four percent of the planet can be considered safe zones, and unless the squad finds them, they are doomed. According to "The 100" season 4 spoilers, Raven (Lindsey Morgan) might know where they are.

This is thanks to her ability to interpret the evil Artificial Intelligence's codes, which will come in handy as they try to figure out what to do to stop the planet's imminent extinction.

Whether or not she will cooperate remains to be seen. The group's journey to save the world in "The 100" season 4 will not be easy as some of them will grow hopeless.

This is what showrunner Jason Rothenberg said to Zap2it last month when he revealed a sing-along happening in "The 100" season 4.

"Once this thing lands in their lives as a reality—that they're all going to die in six months—we will see some people say, 'You know what, enough fighting, I just want to live life to its fullest,' and those people will sing," Rothenberg teased.

It is unknown who these people will be although Zap2it surmises that Clarke, Bellamy (Bob Morley) and Octavia (Marie Avgeropoulos) will likely be not included considering the situation they are in.

Clarke is not exactly the type to give up putting people to safety while Octavia is still too frustrated about Lincoln's (Ricky Whittle) death to sing. Bellamy is not really the type to belt a tune, more so when he has things to make up for with Octavia.

"The 100" season 4 will premiere next year on The CW.