Shōgun recap

In 1600 the English pilot John Blackthorne is shipwrecked in Japan, the first of his countrymen to reach it, and is drawn into the deadly power struggle that followed the Taiko's death. Brought before the great lord Toranaga, he reveals that the Portuguese Catholics entrenched in Japan are only one rival European power among many, knowledge that makes him both valuable and a target of the Jesuits. Caught between Toranaga and his enemy Ishido, who holds Osaka, Blackthorne throws in his lot with Toranaga, helps him escape Osaka, and is raised to samurai rank, given a fief, and set to training musketeers. He falls in love with his interpreter, the Christian noblewoman Mariko, whose brutal husband Buntaro complicates everything. Toranaga plays a long, deceptive game, even feigning surrender. The climax comes when Mariko goes to Osaka and forces a confrontation over Ishido's hostages, dying in a ninja attack in a way that breaks Ishido's grip. At the close, Blackthorne's ship is secretly burned on Toranaga's order to keep him in Japan, and Toranaga's thoughts reveal he has engineered everything to clear his road to becoming Shogun.

In 1600 the Erasmus, a Dutch trading ship piloted by the Englishman John Blackthorne, is wrecked on the coast of Japan after a ruinous voyage, its few surviving crew starving and sick. They come ashore in the domain of Izu, where the samurai Omi takes them captive and confines them in a pit. Blackthorne's first days in Japan are a series of violent shocks: casual executions, an alien code of conduct, and a display of authority when one of his men is killed on Omi's order. The local lord, Yabu, seizes the ship's guns, cannon and silver, recognising their worth. Blackthorne begins to grasp that he has washed up in a rigid, dangerous and utterly foreign world in which his life is worth nothing unless he can make himself useful.

Blackthorne is taken to the great city of Osaka and brought before Toranaga, the ablest and most powerful of the five regents governing Japan in the name of a child heir since the death of the Taiko. Through the Jesuit interpreter Father Alvito - no friend to a Protestant Englishman - Toranaga questions Blackthorne closely and learns from him a wider truth about the world: that the Portuguese and their Church are only one European power among rivals, and that their presence in Japan serves ambitions of their own. This knowledge is explosive. Caught in the deadly rivalry between Toranaga and his enemy Ishido, who holds Osaka, Blackthorne is imprisoned and threatened, while the Portuguese and the Jesuits, alarmed by what he has revealed, work to have the heretic silenced.

Trapped politically in Osaka and in growing danger from Ishido, Toranaga engineers a daring escape from the castle and the city, and Blackthorne plays a part in getting him clear, beginning to earn the great lord's regard. They flee by sea, running past Ishido's forces and a Portuguese warship in a tense chase in which the pilot Rodrigues and the rival factions all manoeuvre for advantage. Blackthorne, still bewildered by Japanese ways but increasingly drawn to them, survives the flight and casts his lot, for want of any better option, with Toranaga, whose protection is now the only thing keeping him alive.

Back in Toranaga's territory, Blackthorne's fortunes rise. Toranaga, seeing his value, grants him the rank of hatamoto and eventually samurai standing, gives him a household and a fief at Anjiro, and sets him to training samurai in Western tactics and the use of muskets and cannon. The noblewoman Mariko, a devout Christian convert of tragic lineage, is assigned as his interpreter and becomes his teacher in language and custom; their closeness deepens into a forbidden love conducted with great care and danger. Blackthorne, now called Anjin-san, adapts to Japanese life, and at one point saves Toranaga's life during a violent earthquake, binding the two men further. Around them, Toranaga's long political game against Ishido and the other regents keeps unfolding.

The tension around Blackthorne and the lords sharpens. Mariko's brutal, jealous husband, Buntaro, returns, and his hostility toward Blackthorne and his violent marriage to Mariko become a source of real danger. Toranaga plays a deep and patient game, appearing to yield ground to Ishido's coalition while secretly preparing, his true plan - a strategy his intimates call Crimson Sky - kept hidden even from his own people. Blackthorne endures further hard lessons in the samurai code, including moments where his life and the lives of those around him hang on a single word or gesture, and comes to understand how completely honour and duty govern everything in this world.

Toranaga's position appears to collapse. Isolated by Ishido's alliance and seemingly outmanoeuvred, he stuns his followers by announcing his submission and resigning from the Council of Regents, a move that looks like surrender and despair. Many around him are thrown into confusion and grief, some to the point of contemplating death, unable to see any purpose behind it. Beneath the surface, however, Toranaga is still playing for time and for position, and his apparent defeat is another turn in a game whose real shape he keeps to himself. Blackthorne, bound now to Toranaga's cause and to Mariko, is carried along toward the crisis gathering at Osaka.

At Toranaga's direction, Mariko travels to Osaka, where Ishido is holding the noble families of the realm as hostages to keep their lords in line. There she precipitates a crisis by formally insisting on her right to leave the castle with Toranaga's ladies, forcing Ishido either to let her go, which would shatter his control of the hostages, or to stop her by force and expose his dishonour before the assembled lords. The standoff brings Osaka to the brink. In the crisis a band of ninja attacks, and in the violence Mariko is killed, deliberately placing herself in the path of an explosion. Her death is a devastating personal loss to Blackthorne and a decisive political stroke: it disgraces Ishido, breaks his hold over the hostages, and frees the great families to slip out of his grasp.

In the aftermath, Blackthorne, grieving Mariko, finds his ship, the Erasmus, destroyed by fire - burned, unknown to him, on Toranaga's own secret orders, so that the Anjin will remain in Japan and dependent on his lord. Toranaga consoles him and promises to help him build a new ship, binding him more tightly still. In the novel's closing passage Toranaga's private thoughts reveal the full extent of his design: Mariko's sacrifice, the burning of the ship, and the whole tangle of manoeuvres have all served his overriding aim, to break Ishido's coalition and clear his path to supreme power. He intends to march to war - the reckoning that will make him Shogun, sole military ruler of Japan - and he means to keep Blackthorne, whom he has come to value and even like, close at hand as a useful piece, quietly certain that the Anjin will never be allowed to leave.

Shogun ends with Toranaga's hidden design laid bare. Sent to Osaka by Toranaga, Mariko forces a crisis over the noble hostages Ishido is holding, insisting on her right to leave the castle; when a ninja raid follows, she dies deliberately in an explosion, an act that disgraces Ishido, breaks his hold on the hostages, and frees the great families from his coalition - a decisive blow struck at the cost of her life. Blackthorne is left grieving, and then finds his ship, the Erasmus, burned. Only the reader learns that Toranaga himself ordered it destroyed, so that the Anjin will stay in Japan and remain dependent on him; Toranaga comforts Blackthorne and promises him a new ship. In the final passage, Toranaga's private reflections reveal that Mariko's sacrifice, the burning of the ship, and every apparent setback have all served a single purpose. With Ishido's alliance shattered, he is now free to go to war for supreme power and to make himself Shogun, sole ruler of Japan. He intends to keep Blackthorne close as a prized and useful man - and is privately certain the Englishman will never be permitted to leave. The great battle that will decide the realm still lies ahead, but its outcome is no longer in doubt.