Ep. 4: Kenshiro confronts Mr. Heart and uncovers King's true identity after a fierce battle.
Aired on November 1, 1984

Kenshiro discovers that prisoners transported with Lin are detained in a separate camp within a nearby valley. He successfully liberates the imprisoned villagers, but they are subsequently slaughtered in an ambush orchestrated by Mr. Heart, the final member of the Four Jacks. Although Mr. Heart's excessive flesh initially resists Kenshiro's strikes, the protagonist eventually employs the Hokuto Juhazan technique to bypass these defenses and hit a critical pressure point. Through this intense confrontation with Mr. Heart, Kenshiro deduces the true identity of King, gaining crucial insight into his enemy's nature.
Episodes
- Ep. 1 · The Strongest Man Arrives in Hell, Questioned as God or Devil
- Ep. 2 · Kenshiro avenges Smith by defeating Spade with Hokuto Zankaiken in the desert village
- Ep. 3 · A Lone Fist Burns in the Dark City as the Five Exploding Fingers Meet Their End
- Ep. 4 · Kenshiro confronts Mr. Heart and uncovers King's true identity after a fierce battle.
- Ep. 5 · Kenshiro learns Shin is his rival and vows to rescue Yuria from the flames of a burning castle.
- Ep. 6 · Kenshiro seeks a scarred man in a God's Army oasis city after a bounty is placed on him
- Ep. 7 · God's Army hunts Kenshiro, who surrenders to infiltrate their base and defeat Sergeant Mad.
- Ep. 8 · Kenshiro strikes the hidden power point, delivering no requiem for the wicked Colonel.