Randy Daytona (played by Dan Fogler) is a former ping pong champion who becomes disillusioned with the sport after losing a crucial match at the 1988 Olympics. Years later, he is approached by FBI agent Rodriguez (George Lopez), who asks him to go undercover in a high-stakes ping pong tournament hosted by criminal mastermind Feng (Christopher Walken).
Daytona reluctantly agrees to help the FBI in exchange for a chance to avenge his father's death, which was carried out by Feng over a gambling debt. Along the way, Daytona teams up with a group of misfit ping pong players, including the talented and attractive Maggie Wong (Maggie Q), who helps him train for the tournament.
As they enter deeper into Feng's underground world of illegal ping pong, Daytona and his team face off against various opponents with strange and outrageous skills. Meanwhile, they must navigate dangerous obstacles such as hidden traps, deadly creatures, and rival players who are willing to do anything to win. Daytona's mission becomes even more complicated when he discovers that his former mentor, Master Wong (James Hong), is now working for Feng.
Despite the odds against them, Daytona and his crew eventually make it to the tournament's final round, where they face off against Feng himself. In a thrilling and comedic showdown, Daytona uses his ping pong skills to defeat Feng and save the day. The film ends with Daytona and Maggie Wong beginning a romantic relationship, while the FBI arrests Feng and his associates.