Interstellar rivals Lin Yan and Shen Che were forcibly bound by the BUG system and dragged into different time and space such as the Republic of China and the end of the world. From tit-for-tat confrontation to back-to-back breakouts, amidst gunfire and desperate situations, they peeled away the lies of the past and discovered that the bonds had already been deeply rooted. The wrong red line tied to the system eventually became an unavoidable fate.