Gaia is a blend of ecological and folk horror, with a dose of the cosmic and apocalyptic thrown in for flavor. Screenwriter Tertius Kapp offers up a story about the fury and unknowability of nature, one that feels both contemporary and ancient at the same time. Though we didn’t care for the sometimes stock quality of the special effects, Gaia is underpinned by a great script, on-point performances, unsettling sound and cinematography, and a timely, well-executed concept.