On Tanna Island in Vanuatu, a South Pacific archipelago, villagers venerate an American they call John Frum, a pilot they believe fought in World War II and promised to return with wealth they call "the cargo." Richard Martin-Jordan's film follows the community that has kept this expectation alive since the 1940s, praying to a raised American flag and organizing a uniformed honor guard modeled on U.S. GIs. Isaac the Last One, who leads the movement and claims to be Frum's own son, appears throughout, directing rituals and preparing his followers for February 15th, the date they observe each year as John Frum Day, even though no one claims to know which year Frum will actually arrive. The camera stays close to daily life on Tanna: villagers working, worshipping, and rehearsing the marches and flag ceremonies that make up the cult's practice, while imported clothing and technology creep into the same frame as a sign of how much the outside world has already changed around them. The film treats the cargo cult less as a curiosity than as a working example of how a religion can start from a single wartime encounter and still be running eighty years later.