Miracle Mile starts conventionally enough, with bashful musician Anthony Edwards going ga-ga over waitress Mare Winningham. After a pleasant if somewhat quirky day together, Edwards and Winningham plan a tete-a-tete at the all-night restaurant where the girl works.
While preparing to call her on a pay phone, Edwards intercepts a frantic call from a soldier stationed at a Midwestern missile silo. The message: nuclear warheads have been launched, and it's only 70 minutes to Armageddon! This unsettling news casts severe doubts over the future of Edwards' and Winningham's relationship.