In the Warring States Period of ancient China (475–221 BCE), Shin and Hyou are war-orphans in the kingdom of Qin. They dream of one day proving themselves on the battlefield. One day, however, Hyou is taken to the palace by a minister. Winding up on the losing side of a power-struggle, Hyou manages to return to the village, barely alive. Shin then meets a boy who closely resembles Hyou, Ei Sei. For now he is the king of Qin; later he will become the emperor Shi Huangdi.
The worst episode of "Kingdom" is "An Unbreakable Heart", rated 7.2/10 from 162 user votes. It was directed by Mitsutoshi Sato and written by N/A. "An Unbreakable Heart" aired on 7/2/2012 and is rated 0.1 point(s) lower than the second lowest rated, "Fated Meeting".
Xin, who's vowed in the name of his own ambitions to help the King, must singlehandedly face the treacherous assassin Mu Ta. Meanwhile, General Wang Yi brings a piece of tribute to the Court that seems to spell the end for all young King Zheng's hopes.
Director: Mitsutoshi Sato
Writer: N/A
Xin discovers Ying Zheng, the young King of Qin, who's fleeing his half-brother's uprising. Piao's killer arrives to murder Ying Zheng. Xin, who's learned that Piao died serving as Zheng's stand-in, must decide which to help and which to kill.
Director: Mitsutoshi Sato
Writer: N/A
Xin and Zheng entrust their escape to young Diao, who knows a secret way out of Heibei Village. Xin still blames Zheng for Piao's death, and even as this simmering conflict boils over, a new and deadly pursuer takes up the chase.
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Fleeing pursuit, Zheng and Xin struggle with exhaustion and with each other. When they reach the appointed meeting site, there's no sign of Zheng's sole supporter, Lord Changwen . . . and the murderous tracker Mu Ta is hot on their trail.
Director: Masahiro Takada
Writer: N/A
Xin hears a tale of Piao's heroism during Wang Yi's ambush, but he also learns that King Zheng has even fewer allies than he'd been told. With little time left to forestall a civil war, Zheng decides on a dangerous path, to seek out unlikely allies.
Director: N/A
Writer: N/A
Zheng and Xin return to where Lord Changwen waits. They make ready to ride to the capital, but they'll need remarkable strategy to overcome the terrible odds. Meanwhile, in the capital, Jie Shi has raised a vast army to face the formidable Lu Buwei.
Director: N/A
Writer: N/A
Shin and Hyou are two slaves who have grown as sword training buddies and pseudo brothers with a common dream of growing up to be great generals.
Director: Jun Kamiya
Writer: Naruhisa Arakawa
Xin's first true campaign as a soldier comes at last, but when Wei makes a surprise move, the battle doesn't go as he expected.
Director: Mitsutoshi Sato
Writer: N/A
Xin sets out into the western mountains with Zheng and his handful of soldiers, seeking the aid of the mountain king. The mountain folk, though, have little liking for flatlanders, and when he meets them, King Zheng is forced to make a perilous choice.
Director: N/A
Writer: N/A
Zheng, Xin, and their companions arrive at the gates of Xianyang, capital of the Qin Kingdom, with a force far too small to assault such a great fortress. A stratagem may get them inside the walls, but they won't reach the Royal Court without a fight.
Director: N/A
Writer: N/A
The recalcitrant and powerful Lü Buwei finally makes his appearance, accompanied by his more-than-formidable "Four Pillars." But condescension and a scarcely veiled threat of violence show right through his half-hearted show of respect to King Zheng Ying.
Director: Masahiro Takada
Writer: N/A
Xin has his first taste of fame, and Wu Meng is back to leading the Qin offensive. Will it go the same way as the last one, or does Wu Meng have a trick up his sleeve?
Director: Shigeki Kawai
Writer: N/A
Zheng's supporters discuss the pros and cons of bringing the Queen Dowager onto their side, while Zheng takes matters into his own hands.
Director: N/A
Writer: N/A
The original 100-man Fei Xin Force is down to 36 men, and Zhao's generals are closing in. However, morning has dawned, and Wang Yi is on the move.
Director: Mitsutoshi Sato
Writer: N/A
Former servant Xin now commands 300 troops in the formidable Fei Xin Force--and the big battle he's itching for may be right around the corner.
Director: Akira Iwanaga
Writer: Naruhisa Arakawa
Blocked by Wei Xing's elite crossbowmen, the forces of Zheng and the mountain folk split up. Xin accompanies a smaller force to seek out the usurper Cheng Jiao in the palace... but their way, too, is blocked, by the deadly assassin Zuo Ci and his men.
Director: N/A
Writer: N/A
His companions battered, Xin must rise to face the monstrous Lan Kai; in doing so he learns something of the true nature of the sword. Outside, Zheng's desperate fight is interrupted by the unwelcome arrival of the mysterious and powerful General Wang Yi.
Director: N/A
Writer: N/A
Just as Qin is successfully waging war with one of its neighboring kingdoms, Han, another neighbor makes its own attack against Qin.
Director: N/A
Writer: N/A
Xin and his comrades march into battle together again, this time under the command of the great general Wang Yi. Meanwhile, the Royal Court begins to suspect that Wang Yi has his own ulterior motive for taking on this particular battle.
Director: N/A
Writer: N/A
The Fei Xin Force is eyeing tactician He Liao Diao with great distrust, but who else can think up a way to deal with the latest wave of Wei attackers?
Director: Norihiko Nagahama
Writer: Naruhisa Arakawa
In the stronghold of the mountain folk, Zheng treats with their king, who seems determined to kill the young King of Qin in retribution for longstanding grudges. And the arrival of Xin and his companions pushes this confrontation to its crisis.
Director: N/A
Writer: Mitsutoshi Sato
The breakaway force reaches the Throne Room, only to find the traitor Cheng Jiao guarded by his monstrous "pet," who's seemingly impervious to weapons. Ba Jio reveals a previously unseen savagery, but can he contend with the brute strength of Lan Kai?
Director: Mitsutoshi Sato
Writer: N/A
Just when it seems the battle on the She Gan Plain is finally going their way, Qin's forces are suddenly surprised by the advent of three generals: their own, the enemy's... and one who's not even supposed to be there!
Director: N/A
Writer: N/A
When Xin approaches Wang Yi looking for a mentor to make him stronger, he discovers that the great general doesn't make things easy.
Director: Shintaro Itoga
Writer: N/A
Xin confronts Li Mu, the man who orchestrated Wang Yi's battlefield defeat, while Diao touches base with Kaine. Zheng reveals his future plans.
Director: N/A
Writer: N/A