Back to 2017, a radical research lab under S Corp had started a secret project, base on large number of clone subjects. They claimed "The Second Evolution for Human Being" as their dream.
The secret project had achieve some success, created new type clones with specail genetic talent. However disaster happened after one researcher had accidentally overdosed the subjects----Most clones went ballistic and became infectious, then immediately the whole lab was abandoned and strickly isolated.
13 years had past, other than the only one successfully evoluted clone, what else there could be...?