Lin Rui, a seasoned veteran, is having a tough time making ends meet and is unable to secure employment. After yet another unsuccessful job interview, he encounters a mysterious middle-aged man who presents him with a contract from a military security firm. This contract alters his life in ways he never expected. He becomes a contract worker engaged in conflicts around the globe. He embarks on perilous missions in volatile regions, transforming from an unnoticed battlefield pawn into a renowned mercenary leader.