The 100 survivors must ally with the newcomers to save their own.
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4. Pandora's Box - The 100 survivors must ally with the newcomers to save their own.
Clarke finds herself struggling to survive on a desolate Earth.
Octavia takes guidance from an unlikely ally.
Bellamy investigates a potential way home.
Octavia leads her people toward Shallow Valley.
Kane tests Wonkru's allegiance to Octavia.
Echo risks her friendship with Raven for a mission.
Clarke puts Bellamy in an impossible situation.
Murphy starts a fire in the Valley… with catastrophic results.
Monty shows Wonkru an alternative to war.
Clarke learns of the trials of the dark year in the bunker.
Wonkru goes to war and the group must overcome their differences.
Clarke and her friends glimpse an even more sinister threat.