Matango

The well-to-do imaginatively escape the bustling activity of mainland Japan, and relaxingly enjoy a tranquil voyage on the sultry seas within their yacht. 

Sequestered and tasked with nothing in particular they chill and lounge throughout the day, the resplendent sun and nourishing waters everlastingly inspiring creative song.

Little known to them however an invasive storm inauspiciously rises, suddenly taking them unawares as they desperately attempt to thwart its ambition.

Soon they awake, their vessel dispirited, in cognizant wonder and humbled pride, fortunately next to an isolated island perhaps upon which they can find rest and food.

But it's soon detected that many a bird refuses to land upon its branches, even though it's far out at sea and flight-weary-creatures could no doubt flock there.

A number of other sea-faring ships are also discovered beneath the waves, their captains and crews having long since vanished although where and when remains indeterminate.

The only food wildly growing in abundance is an ominous mushroom which coaxes temptation. 

The starving travellers exceedingly oblivious. 

To its rich mutative transformative properties.

Travelling the world by boat must have been incredibly dangerous in so many ways, notably trying to find fresh foods to eat when daringly embarking on newfound lands.

Each ship perhaps vigilantly carried remarkable science-officers like they do on Star Trek, who could experimentally determine or cleverly guess which new foods to eat within the interior.

Some ships many have not been so farsighted and may have rather relied on trial and error, dependable precedent invariably leading to nutritious success and prolonged mortality. 

In this instance, they may have applied themselves in harrowing error upon the island, as the edible mushrooms proved sedately intoxicating a reliance upon them quickly ended their voyage.

But alone in Tokyo having somehow managed to set a boat adrift back upon the Pacific, the lone survivor madly wishes he was safe and secure back upon the haunting island.

Missing his friends he wildly engages in uncharacteristic frenzied outbursts, the doctors watching with studious eyes as his body bears witness to mushroom consumption.

Thus, when travelling through space make sure to bring a food expert along, or suffer the same fate as these foolish plutocrats who once held the highest political offices.

It seems like a no-brainer but budgetary efficiencies often cut corners when planning expeditions. 

Unconcerned for the lives of their crews.

They set out with frugal inexactitude.