Reiji's final mission is to prevent the smuggling of 600 billion yen of drugs. For his mission, he gets on luxury passenger ship and he faces his strongest enemy to date.
The Mole Song: Final is a 2021 Japanese action comedy film directed by Takashi Miike from a screenplay by Kankuro Kudo based on the popular manga series Mogura no Uta by Noboru Takahashi. It is the final film in the trilogy beginning with the 2013 film The Mole Song: Undercover Agent Reiji and continued in the 2017 film The Mole Song: Hong Kong Capriccio.