Gohei enlists a vicious street-fighter known as Sanosuke to seek revenge against Kenshin. And even though Kenshin exposes Gohei's plan, Sanosuke makes it clear that the two of them will fight each other one day.

After accepting Sanosuke's challenge, Kenshin encourages him to release his anger towards the corrupt Royalist forces.

Though her medical knowledge has saved Yahiko's life, Sansosuke suspects Megumi of producing the opium responsible for a close friend's death.

As Kaoru and Yahiko anxiously await his return, a wounded but determined Kenshin arrives for his final showdown with Shishio, who is unwilling to have anyone stand in his way of controlling Japan's future.

In their long awaited battle, Kenshin and Shishio compare ideologies as well as fighting techniques. But once Shishio uses gunpowder to gain the upper hand, it looks like Kenshin is doomed.

As Aoshi tries to stop a takeover of the country, Kenshin poses Shishio with his greatest challenge. In his defeat of Usui, Saito exposes the blind warrior's plot to kill Shishio.

Kenshin's final effort to win the ultimate battle ends with Shishio destroying himself. But in the wake of Kenshin's victory, Shishio's closest aide vows revenge.

After Kenshin finds a ring inside a catfish, he's persuaded to give it to Kaoru. Thinking it's an engagement ring, Kaoru is sure that he's asking her to get married.

When Kenshin accidentally loses all their money, the Peace Force must go to work at an inn in order to pay their bill.

When a letter from Dr. Hans reveals the story of the miraculous medicine, Yutaro joins the Peace Force in an effort to find it.

Using the clues left behind by Dr. Hans, Kenshin and company are led to the hidden shrine that holds the key to the miracle cure.

After surviving a fall into a volcano, the Peace Force comes across an injured Sanada Ninja who offers to help battle his former allies.

After their search leads them to the hidden cure, the leader of the Black Knights makes it clear that he has no intention of honoring his promise to cede control of Japan to the Sanada Ninjas.

As he faces off against the Black Knight's leader, Kenshin must rely on his brains and not his sword to win the battle.