Apple TV releases the first trailer for “Mayday,” an action-buddy comedy starring Ryan Reynolds and Kenneth Branagh. The film follows U.S. Navy pilot Lieutenant Troy “Assassin” Kelly, played by Reynolds, who is sent on a top-secret mission into Russian territory during the height of the Cold War. The trailer frames the premise around him getting stuck behind enemy lines as he works with Branagh’s character to navigate the situation and prevent the mission from escalating. Both outlets report that Apple Original Films will premiere the movie on Apple TV on September 4, 2026. While the promotional material highlights the Cold War setting and action-comedy tone, the sources’ shared details focus on the central character’s deployment into Russian territory and the “Mayday” concept that suggests a distress moment or urgent problem requiring rapid resolution. The releases also confirm that the trailer is the first official look at the film ahead of its streaming debut.