1925, Corea está ocupada por los japoneses. Chon Man-deok, considerado en otro tiempo el mejor cazador de tigres de Corea, vive en la montaña de Jirisan con su hija. Mientras, un militar japonés moviliza a un grupo de soldados para cazar al último gran tigre de la zona, devolviendo a su vez a Chon Man-deok a la acción.
Seo Yigang is the best ranger at Jirisan National Park. She knows virtually everything about the area, including where to climb the mountain. Kang Hyeonjo is a rookie ranger at Jirisan National Park. He graduated from the military academy and was once an army captain. He has a secret that he can't tell anyone about. These two people become partners and they work to save people around Jirisan National Park.
