The story begins when Jak, Daxter, and other characters are called to the city of Kras for the reading of Krew's will, a former criminal who poisons them through a drink and forces them to participate in the Combat Racing Championship tournament to win the antidote. The races take place on dangerous tracks full of traps, weapons, and hostile drivers, while the plot reveals conspiracies and old connections to Jak's world.

The gameplay combines speed, combat, and strategy, with vehicles that can be equipped with rockets, mines, turbo, and shields. There are modes such as Circuit Race, Deathmatch, Rush Hour, and Capture the Power, while the game supports split-screen and online multiplayer. Jak X stands out for its cinematic storytelling, the intensity of the races, and the expansion of Jak's universe into a new genre, maintaining the humor and personality of the characters.