This film is adapted from a Belgian comic book, which was inspired by the game of the same name, XIII. Three months after the first female president in American history was assassinated while giving a speech on Veterans Day, a man covered in wounds and ragged clothes (Stephen Dorff) appeared in a forest. He has no name, no memory, no past, and is completely unrecognizable, as if he has never been to this world. The only clue is the tattoo "XIII" on his body. XIII escaped from prison with the help of a mysterious organization, met a lover who seemed familiar, was forced to make a deal by the mysterious organization, and was hunted by another group of people. Their purpose is the memory chip hidden in XIII's watch, and everything is confusing. XIII found himself involved in a shocking conspiracy, and he was not the real XIII. The real XIII was killed after the assassination of the president. He was an undercover assigned by the general who was then the deputy director of the National Security Agency, intending to lure the appearance of the mastermind behind the scenes...