Hawaii Five-O (1968)

S7E2 A Hawaiian Nightmare

In dire financial straits, geophysics specialist Bernard Brown devises a sinister scheme to detonate an explosion in Hawaii Volcanoes National Park. His plan threatens to unleash a torrent of lava cascading down the slopes towards Hilo, unless the Governor agrees to pay a ransom of $500,000. As the clock ticks, the stakes rise, and the fate of the city hangs in the balance, forcing authorities to scramble for a solution to avert disaster.