On the 11th of March 2011, an earthquake and a tsunami led to the most serious nuclear accident of the century. On the heels of explosions, radioactivity levels reached record highs. This extraordinary film draws upon hundreds of hours of footage filmed by robots, allowing viewers to enter into the darkness of the power plant's nuclear reactors, to understand what went wrong and how to fix it.

On the 11th of March 2011, an earthquake and a tsunami led to the most serious nuclear accident of the century. On the heels of explosions, radioactivity levels reached record highs. This extraordinary film draws upon hundreds of hours of footage filmed by robots, allowing viewers to enter into the darkness of the power plant's nuclear reactors, to understand what went wrong and how to fix it.