Genius young Kaka is a dream of the child, he dreams of becoming a top automotive engineer. Through continuous efforts to develop the future of the society's most intelligent vehicle intelligent control system - K system. This is a magical interactive system, which can realize the human car dialogue, let the car become a human partner. Kaka, with the help of a small assistant, Ding Ding, designed three different cars - K1, K3, K2. One day, Kaka received an invitation to the senior smart car competition, determined to take his 3 car to the competition. In order to win the game, Kaka on 3 cars were trained, and according to the results of the training, and finally achieved a preliminary victory, and successfully got the final invitation. Kaka, a pedestrian in the laboratory to the transformation of the X to participate in the competition. On the way to the city of X, Kaka has simulated many of the events that might appear in the game, and the K system was upgraded according to the simulation. After a series of training and system upgrade, finally ushered in the final. K2, K3, K1 in the final encounter a lot of strength and cunning opponent, and met a lot of traps, they can unite, to break through this heavy obstacles, to win the game......