Watchmen depicts an alternate history where superheroes emerged in the 1940s and 1960s and their presence changed history so that the United States won the Vietnam War and the Watergate break-in was never exposed.
Watchmen menggambarkan sejarah alternatif di mana superhero muncul pada 1940-an dan 1960-an dan kehadiran mereka mengubah sejarah sehingga Amerika Serikat memenangkan Perang Vietnam dan serangan Watergate tidak pernah terungkap.