An ancient boat has been unearthed on a remote tropical island and the university has set up an archaeological dig site. They are sending teams on two-week rotations but are only able to select from the male members of the faculty as the scant native dress code imposed by the tribal owners of the island precludes females from being involved.

Young married Charlotte and her fiery redhead girlfriend want to be involved. Charlotte's husband Archie is a member of the archaeological department too and is supporting her defying the archaic ruling and going on the next rotation.

The innocent young couple and their female friend should be careful what they wish for, as the dig site on the tiny remote island in the middle of the Indian Ocean is at a village used for an annual fertility festival, and there's something quite powerful in the air and the moonshine the natives freely share.