The talented mid laner Jiang Jin, who was banned by the entire network, sneaked into the professional league as a substitute and used extraordinary comebacks to reveal the dark truth. Captain Su Lin secretly escorted the team, but the former replacement Lin Zhao had hidden murderous intentions, explaining that Chu He had a fatal recording and that underground coach Lao K had already laid a skynet. When the capital-controlled league welcomes the most dangerous substitute, who is the real 'professional'?
