As the Wei army tackles the mighty Hangu Pass, the allied army of Meng Wu and Teng are battling the Chu army--and there are old scores to be settled.

Rumors about Qin reach Qiang Lei on her journey. Li Mu calculates the best time to strike, and the Battle of Hangu Pass reaches its turning point.

Meng Wu repeats his daring echelon sweep against Chu, but with a twist. Chu's massive Han Ming faces off against Meng Wu in a battle for the ages.

Xianyang is in disarray as Li Mu's army approaches and King Zheng goes missing. Qin formulates a strategy around a southern outpost--its last hope.

An exhausted Xin draws on what remains of his strength to face Pang Nuan. The end of the war with the coalition army is in sight, but at what cost?

Tunliu rises in a revolt against the rulers of Qin--one with Cheng Jiao at its center. Old friends reunite as they're deployed to quell the uprising.

As Wang Ben tangles with master spearsman Zi Bai, Ling Huang gives Wu Fengming and his officers insight into his fellow Fire Dragon's past and psyche.

Zhao's military minds ponder the aftermath of the Battle at Zhuyong. A powerful figure visits the Royal Court to stake a claim on the new Qin outpost.

Xin explains how Diao learned of the rebellion. Lord Changping makes a momentous decision. The seige of Xianyang intensifies as Xin's troops arrive.

Lieutenant Yuan and his men work hard to fulfill their vital role. A surprise appearance by a charismatic figure greatly affects the tides of battle.

Qing She considers his debt to Li Mu as he faces Xin on the battlefield. Devastating events drive Ji Hui to pursue a new tactic in defending Heiyong.