Episode 1: Alliances
It is two months later and Arkadia along with the Grounder tribes has evolved into the start of a civilization. But a threat is on the horizont. A tribe, Ice Nation, seems to have take part of Skaikru prisoner in FarmStation.
Meanwhile in Arkadia many people are happy and celebrating their victory over Mount Weather. But Lewis, previously a Grounder is now suddenly turned back into a normal human...or so it might seem.
And in Polis a romance is brewing between the Heda Ivy and a girl called Ara. Something rather uncalled for in Grounder society.

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Episode 2: Beliefs
The 100, lead my Amelia are on a rescue mission to save everyone from FarmStation. The plan turns into a full out shooting at Ice Nation and the Queen falls. Everyone is rescued but in the end it doesn't matter.
Because the silent war has started. People like Gage and Lewis have taken the pill and are now spreading it to other people.
These become silent and sometimes even aggressive, forcing the pill into people.

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Episode 3: Broken Promises
The 100, The Commander and Azgeda are now the only ones which aren't chip. But they must escape or else everyone that is chipped will destroy them.
Ivy escapes Polis with her loyal followers like Lexi, but Ara, her love, is taken by ALIE.
Meanwhile in Arkadia, the 100 have a plan to escape. McAllen, along with Skylar and Athesis help the 100 out of the now infested camp and find the machine to destroy the chup.
But one person is left behind. Amelia. In full sight of her people has a gun put against her head by Lewis. A shot goes off and the 100 have to run.

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Episode 4: Trust
When they arrive, Azgeda is there waiting for them. The 100 find Pherica and plans to build a machine that can destroy ALIE. Yet Azgeda now attacks these teens and the Outpost, along with the rememants of Amelia get burned.
Now all of the 100, lead by McAllen, find the bunker and finally settle down.
Athesis and Skylar begin building the machine and Evan as well as Melody take the chip to get away from emotional pain.
Yet just in Time the burnt, half-dead Amelia comes back! Now it is time to rest the machine. And it actually works, the people finally manage to destroy a chip.
Now that they know how to destroy ALIE, they're missing one thing.
The Blood of the Heda.

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Episode 5: Fire and Blood
After some hard negotiations Heda Ivy is knocked out by Amelia and taken to Polis, where the last battle will now commence. Skylar is hooked up to a machine that connects her to ALIE while the rest of the 100 fight alongside Grounders. A war for the human race.
Skylar then discovers that Earth will be destroyed comepltly in 6 months by a radiation fire. Praimfaya.
But as many celebrate their victory, Amelia grieves over the death of one of their leaders. Evan.
McAllen and Amber are badly wounded.
Ara and Ivy reunite and many others seem have and want to celebrate.
But what is it worth when everything on planet earth will be destroyed?