On a scientific expedition a biologist, E.D. Hubbs, and his cynical assistant, mathematician James Lesko, discover a town deserted after an attack by highly evolved ants. Faced with an enemy that they struggle to comprehend and stop, Hubbs becomes increasingly obsessed with carrying out their mission, whilst Lesko starts to fear for their safety and the prospects of humanity. The only film directed by opening credits and special effects wizard Saul Bass, who filmed the spectacular exteriors between Arizona and Kenya's Rift Valley.
Few did as much to alter the aesthetics of commercial and popular culture in the second half of the 20th century than Saul Bass. A New York-born graphic designer, Bass became a go-to design man for Hollywood’s most prestigious directors, including Hitchcock and Kubrick. In 1974 he directed his only feature film, the sci-fi outing PHASE IV.