In 2014, Jilin Provincial Archives discovered a large volume of records about the Unit 731 from a newly uncovered collection of archives left behind by the Japanese army invading China. The Unit 731, a name synonymous with horror, devil and inhumanity, was brought under the spotlight again.By offering a rich vein of historical evidence, this documentary reveals the brutal facts behind the experiments on bacteriological weapons performed by the Unit 731 in China, to rally condemnation against zealous war planners, right-wing extremists and, most importantly, the root cause of war – militarism.