In the 17th century, two Jesuit missionaries, Sebastião Rodrigues and Francisco Garupe, travel from Portugal to Japan in hopes of finding their mentor, Father Ferreira, who has disappeared following a wave of persecution against Christians. As they venture deeper into the country, they face not only a hostile environment but also dilemmas of faith and resistance. The narrative revolves around the search for evidence of faith in a world where beliefs are brutally persecuted, and people are forced to trample on their own religion to survive.