At a research facility in Idaho, a group of students are engaged with a government-funded project exploring the possibilities of time travel. Miraculously, the experiment is a success, and the researchers discover – and become prisoners of – a future Earth emptied of humanity.

Unjustly overlooked, Fonda’s followup to The Hired Hand, shot in the barren landscape of the Craters of the Moon National Preserve, is a hypnotic mood piece that powerfully conveys the horror of an ecological apocalypse and the psychological plight of those who inhabit it.