Great Qin Warriors

In the year 2164, a wormhole into an alternate realm was opened by accident, and malevolent creatures known as "replicators" have emerged from there. A bitter war was fought, but the replicators had overwhelming numerical superiority. They managed to replicate the entire Earth, and a suicide mission was sent to destroy this alternate Earth with an energy bomb, by reaching as deep as possible into its core. However, the heroes were unable to reach the core, and were forced to engage their alternate plan - detonate the bomb at the wormhole in hope of closing it. When they came to, they found they had crashed landed on Earth, more specifically in China of the year 241 BC, right in the middle…