Lin Ye, an 18-year-old dock boy, moves goods during the day and practices on an abandoned court at night.
His father Lin Haishan was once the most talented professional player in the city, but he was banned for life due to a "match-fixing case" ten years ago and has since become a reviled person in the city.
Lin Ye didn't believe that his father really played match-fixing.
In an accidental warm-up match, Lin Ye relied on his amazing observation skills to lock down the young international player Zhou Ran, and was spotted by the professional team assistant coach Shen Qiao.
But when the professional team learned that he was the "son of a match-fixer", they immediately disqualified him from trial training.
Lin Ye decided to make a name for himself on his own, while step by step he found out the truth behind his father's frame-up.