What we know from the Apple press release:
“When hotshot U.S. Navy pilot Lieutenant Troy ‘Assassin’ Kelly (Reynolds) is sent on a top-secret mission into Russian territory at the height of the Cold War, the operation implodes, leaving him stranded behind enemy lines,” reads an official synopsis. “Discovered by Nikolai Ustinov (Branagh), a gruff ex-KGB agent with a penchant for American culture, Troy thinks he’s toast — but could an unlikely alliance between the two lead to Troy’s rescue and a bond neither saw coming?”
‘Mayday’ premieres on Apple TV on September 4, 2026.