《Crash》 is a comedy crime investigation drama that tells the story of Cha Yeon-ho (played by Lee Min-ki), an individualist from the Korea Advanced Institute of Science and Technology, and Min So-hee (Kwak Sun-young), the ace of the traffic investigation industry who has both calm judgment and warm sensibility.The story of the “Traffic Crime Investigation Team” that no one is paying attention to, unite together to track down criminals.