In the fifth film of the Lone Wolf and Cub series, Ogami Itto is challenged by five warriors, each has one fifth of Ogami's assassin fee and one fifth of the information he needs to complete his assassination.
Fearless Edo-period police inspector Hanzo Itami, nicknamed The Razor, has developed his own unique way of extracting information for his inquiries. His first adventure sees him investigating his superior officer's mistress, whom he suspects of having ties with a reputed criminal on the loose.
The Americans are swiftly closing on Okinawa, an island just south of the Japanese mainland. The Imperial command sends top generals and several army divisions to defend it at all costs. The mission quickly degenerates as vital resources and troops are diverted to other islands. After a civilian evacuation ends in tragedy most of non-combatants are forced to remain on the island. Many convert to soldier status. Tokyo sends mixed messages that squander time and resources, as when they order the defenders to build an airstrip for aircraft that never come. The truth soon becomes obvious: the high command decides that the island cannot be held and effectively abandons the Okinawan defenders. When the Americans land many troops are deployed in the wrong places. As the slaughter mounts, a suicidal attitude takes hold. Okinawa becomes a death trap, for civilian volunteers and non-combatants as well.
An ever evolving alien life-form arrives on a comet from the Dark Gaseous Nebula and proceeds to consume pollution. Spewing mists of sulfuric acid and corrosive sludge, neither humanity nor Godzilla may be able to defeat this toxic menace.
The Japanese government decides to install a radar on the top of Mt. Fuji, in order to detect typhoons as far as 800 km south of the Japanese archipelago, but the task will not be easy.
Goro (Tetsuya Watari) wants to put his dark past behind. He heads to Hirosaki City to offer his condolences to Yumeko and to reunite with Yukiko (Chieko Matsubara), but finds that Yumeko is fatally ill. Although Yukiko was taking care of her, she is pressed for money. Goro wants to help and knows that there is only one way to come up with fast money.
Kitagawa is an engineer charged with construction of a gigantic tunnel through the Japan Alps for the transportation of equipment in the building of the massive Kurobe Dam. The tunnel crosses an earthquake fault and Kitagawa is beleaguered not only by cave-ins and flooding, but by strife between management and the workers's union. Adding to Kitagawa's stress is the knowledge that as his attention is pulled inexorably toward the tunnel construction, his youngest daughter is dying from leukemia.
After his own gang sets him up to kill a rival mobster, a hit man is forced to flee with his younger brother.
After the Japanese defeat to the Russians, Kaji leads the last remaining men through Manchuria. Intent on returning to his dear wife and his old life, Kaji faces great odds in a variety of different harrowing circumstances as he and his fellow men sneak behind enemy lines.
A Japanese war widow recalls her love affair with her deceased husband.