After the television station is purchased by Nanazon Prime Video, any department that does not achieve high viewership will be reorganized—dismissed. The filming crew then develops a plan. During the Edo period, the Banakawa family amassed enormous wealth; they hid their gold inside a cave that even relatives cannot locate in a tunnel system beneath the forest, a place that has eluded explorers for centuries. Therefore, the crew"s program will document their expedition into subterranean caves in hunt for gold that networks have failed to uncover and hopes to bring it back to eye.
