The Omega Man (stylized as The Ωmega Man) is a 1971 American post-apocalyptic action film directed by Boris Sagal and starring Charlton Heston as a survivor of a pandemic. It was written by John William Corrington and Joyce Corrington, based on the 1954 novel I Am Legend by Richard Matheson. The film's producer, Walter Seltzer, went on to work with Heston again in the dystopian science-fiction film Soylent Green in 1973.

Plot

In March 1975, a Sino-Soviet border conflict escalates into full-scale war in which biological warfare destroys most of the human race. U.S. Army Col. Robert Neville, M.D., is a scientist based in Los Angeles. As he begins to succumb to the plague, he injects himself with an experimental vaccine, rendering him immune.