Lin, a skilled special ops captain, is sent on a mission with his team to rescue a soldier captured by the enemy during a war. However, the mission turns out to be a trap set by his own country to frame them for war crimes. When all seems lost, Lin finds himself standing in front of a mysterious gate and, with no other options, steps through it and is transported to a battlefield. There, he is confronted by people wearing strange clothing who question if he is with the Yellow Turbans, leading Lin to question if he has traveled back in time to the Three Kingdoms period.