The aftermath of the Oxygen Destroyer brings forth Destoroyah, a beast intent on killing Godzilla, who is on the verge of a nuclear meltdown.

A prophecy is discovered on the statue of an Okinawan guardian, King Caesar. It states a monster will appear to destroy the Earth when black mountain appears above the clouds….

An early Okamoto yakuza film, though it’s not in the Underworld series (along with The Last Gunfight and The Big Boss) despite being alternatively known as “Death of the Boss.”…

Ryuta and Mineo Komatsu are brothers, both yakuza (gangsters). Mineo, although complicit in crime, even murder, wants out of the gangster life, hoping to become a successful singer instead. Ryuta…

A 400-foot (122-meter) dinosaur-like beast, awoken from undersea hibernation off the Japanese coast by atomic-bomb testing, attacks Tokyo.

Japan is thrown into a panic after several ships explode and are sunk near Odo Island. An expedition to the island led by paleontologist Professor Kyohei Yemani soon discover something…