Dong-hyun is a high school student. One day, he falls from the rooftop and bumps into Pan-soo who is a passerby. Pan-soo is a member of a criminal organization. When the two men wake up in the hospital, they discover that they have switched bodies.
A movie about a white hacker club 'Better World' and a genius hacker 'HEX' having an inevitable showdown with the black hackers as the Songdo International Exchange was hacked in the fourth industrial revolution.
