When a group of young geologists declares a mountainside marked for residential development unstable, they are met with scorn on two fronts. On one end, they must contend with the local villagers who balk at the prospect of relocation; on the other, they face the ambitions of the headstrong lumber baron, whose actions will only further destabilize the land. Their pleas for reason ignored, the scientists can do little but observe as nature runs its inevitable course.

The organization Mighty Jack is formed to combat the criminal syndicate known as "Q", and are given a large array of advanced weapons, chief among them being a high-tech submarine. Harold Hatari is abducted by Q, and Mighty Jack is dispatched to rescue him. Hatari is interrogated and threatened with blinding lights, but the Mighty Jack crew rescue him in the nick of time. Later, Q is discovered to be using "hot ice" (water that remains solid at room temperature) to create weapons and a secret ocean base disguised as an iceberg (though it's not precisely clear how hot ice could be a major world threat). Q then attempts to take over the Mighty Jack sub.

1961 Japanese crime film