After the Nationals, Seishun Academy is invited to a junior tennis tournament at Wimbledon, where Ryouma Echizen and his teammates represent Japan alongside their rivals from Hyoutei, Shitenhouji and Rikkai. Before play begins, a gang of thugs wearing silver rings attacks some of the players and puts them in the hospital. Ling Xiu, who rescued Ryouma the night before, reveals that he once belonged to Clack, a band of tennis players barred from official competition for their violent style and conduct, and he warns the students to keep away. Frustrated, Ryouma slips out with Xiu to face Clack's leader, Keith, on his own. The film is a sports action comedy made for the tenth anniversary of the Prince of Tennis anime.