Mount Weather is under attack on The 100 Season 2 Episode 15. To see if your favorites made it through part one of the battle, watch The 100 online at TV Fanatic.

Uncaged - The 100 Season 2 Episode 15

Uncaged - The 100 Season 2 Episode 15

Echo is out of her cage and ready to join the fight against the people that put her there.
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Doors to Hell - The 100 Season 2 Episode 15

Doors to Hell - The 100 Season 2 Episode 15

The Grounder army is on the threshold of Mount Weather and the doors must come down.
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Bellamy Keeps His Word - The 100 Season 2 Episode 15

Bellamy Keeps His Word - The 100 Season 2 Episode 15

Bellamy promised Echo that he would come back for her, and he is nothing if not a man of his word.
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Fearless Commander - The 100 Season 2 Episode 15

Fearless Commander - The 100 Season 2 Episode 15

Lexa let her emotions show recently, but this will not stop her from being the brave, badass warrior that we know and love.
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Expect the Unexpected - The 100 Season 2 Episode 15

Expect the Unexpected - The 100 Season 2 Episode 15

Bellamy, Jasper, Monty and Maya are making their way through Mount Weather, but what they find may be too much to bear.
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Mount Weather or Bust - The 100 Season 2 Episode 15

Mount Weather or Bust - The 100 Season 2 Episode 15

The Grounder army is assembled outside of Mount Weather.
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Bringing Out the Big Guns  - The 100 Season 2 Episode 15

Bringing Out the Big Guns - The 100 Season 2 Episode 15

Jasper and Bellamy are on high alert as they make their way through Mount Weather.
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Lincoln and Clark Stand By - The 100 Season 2 Episode 15

Lincoln and Clark Stand By - The 100 Season 2 Episode 15

Clarke and Lincoln stand ready for battle, but getting inside the mountain is the first step.
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Something's Wrong - The 100 Season 2 Episode 15

Something's Wrong - The 100 Season 2 Episode 15

Recent events are taking a toll on Jasper, Maya and Bellamy, as unfortunate circumstances provide a road block.
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Braced for Battle  - The 100 Season 2 Episode 15

Braced for Battle - The 100 Season 2 Episode 15

Clarke has been preparing for the Mount Weather war, and her plans are finally coming to fruition.
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Trouble - The 100 Season 2 Episode 15

Trouble - The 100 Season 2 Episode 15

Another casualty only further proves what we already know – the Mountain Men need to be stopped.
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It's Almost Time - The 100 Season 2 Episode 15

It's Almost Time - The 100 Season 2 Episode 15

The time has almost come for the battle to begin. We can barely take the suspense.
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Bellamy has kept his promise to Echo and the Grounder prisoners, returning to the Harvest Chamber to free them from their cages. They will play an integral part in the battle ahead. Clarke and Lexa are preparing the Grounder army at the doors of the mountain. Clarke goes over the plan, which includes four teams. One at the Dam to blow the power (Raven/Wick), one at the mines to disable the Reapers and guide the prisoners to safety (Indra/Octavia), one inside the mountain (Grounder and Ark prisoners/Bellamy), and one at the doors (Clarke/Lexa). Raven and Wick are setting detonators to blow the power source. Their plan goes awry when one of the bombs breaks, leaving them one short. They come up with a new plan, but it puts them in danger and they are caught in an explosion. Ultimately, they do succeed in blowing the power, but the detonator at the doors fails. Sgt. Miller attempts to make it to the doors to detonate the charge, but also fails. Lincoln manages to shoot a flaming arrow that does the trick. Lexa leaves to take out the shooters on the ridge and returns to tell the Grounders to stand down. She has made a deal with the Mountain Men for the freedom of the Grounder prisoners, but the deal does not include the Sky People. She retreats, leaving Clarke to fend for herself. Inside Mount Weather, Bellamy connects with Jasper, Maya and Monty. Cage has announced that the only radiation-free zone will soon be level 5. This does not bode well for Maya. They stay the course, but are horrified to find the Grounders gone from the Harvest Chamber and Maya's father dead. Octavia refuses to retreat on Lexa's command. She tells Indra that she doesn't trust her. Indra renounces her as second and leaves her in the tunnel alone. Clarke stares at the doors, also refusing to leave and in desperate need of a new plan.

The 100 Season 2 Episode 15 Quotes

The mountain has cast a shadow over these woods for too long. They've hunted us, controlled us, turned us into monsters. That ends today.

Lexa

Cage: I underestimated the Commander. Is that what you need me to say?
Dante: It wasn't the Commander. It was Clarke.