In Ghost of Tsushima's first act, Jin Sakai sets out on the long journey towards rescuing his uncle, Lord Shimura, from Mongol captivity. The missions in this section were centered around the recruitment of surviving Samurai to the cause, and the creation of a tool that allows Jin to scale the walls of Mongol-occupied Castle Kaneda. All of Jin's plans are put to the test in Act 1's final mission, "Shadow of the Samurai," in which Lord Sakai rids the castle of the invaders and rescue's his uncle.