Ep. 12: Xin, Bi, and breakaway force confront Zuo Ci in Right-Side Dragon corridor while King and Lord Changwen resist Si Shi and Wei Xing outside.
Aired on August 20, 2012

Xin, Bi, and the breakaway force fight to reach the throne room, facing the seemingly invincible Zuo Ci in the Right-Side Dragon corridor. Meanwhile, outside, the King and Lord Changwen hold out against Si Shi and Wei Xing.
Episodes
- Ep. 8 · Zheng negotiates with the mountain king while Xin arrives to escalate tensions
- Ep. 9 · Zheng and Xin prepare to travel to the capital while Jie Shi gathers a massive army to confront Lu Buwei.
- Ep. 10 · Zheng, Xin, and companions reach Xianyang gates with insufficient forces for a direct assault.
- Ep. 11 · Zheng and Mountain Forces Split After Wei Xing's Crossbowmen Block Advance
- Ep. 12 · Xin, Bi, and breakaway force confront Zuo Ci in Right-Side Dragon corridor while King and Lord Changwen resist Si Shi and Wei Xing outside.
- Ep. 13 · Lan Kai Roars
- Ep. 14 · Xin confronts Lan Kai while Zheng battles General Wang Yi
- Ep. 15 · Zheng Ying Persuades the Strange Bird of Xin Before Facing Jiao Cheng
- Ep. 16 · Lü Buwei arrives with his Four Pillars, displaying thinly veiled threats toward King Zheng Ying.