We got our first taste of what's in store for the next 'X-Men' film, 'X-Men: Apocalypse,' in the post-credits scene for 'Days of Future Past,' which previewed the all-powerful villain in his early years in ancient Egypt. With a release date set for May 2016, director Bryan Singer and his writing team have been putting together the script, and while little is known about the plot, an Instagrammed photo of the current story treatment reveals that The Four Horsemen will indeed have a part to play.

We already had an inkling that The Four Horsemen, Apocalypse's henchmen (appropriately dubbed "The Four Horsemen of Apocalypse" in the comics), would be showing up to inflict some devastation, as four hooded figures on horseback were glimpsed in the background of that 'Days of Future Past' end scene. Though, Bryan Singer revealed a photo of the first page of the current 'X-Men: Apocalypse' script on Instagram, confirming as much.

As shown, this current story treatment takes us to the Nile, presumably in ancient Egypt, where a great battle is waging, and Apocalypse and his Four Horsemen are present. In the comics, the villain was known for enlisting the aide of four handpicked mutants, often times by force and brainwashing. Once under his thrall, Apocalypse would then enhance their mutant abilities and transform them into super-soldiers to carry out his will, giving them the names Pestilence, War, Famine and Death. In a famous comic iteration, the mutant Angel (played by Ben Foster onscreen in 'X-Men: The Last Stand') succumbed to Apocalypse after losing his wings and became both Archangel and the Horseman of Death.

Elsewhere, we know that 'X-Men: Apocalypse' will take place in the '80s, and will center on Professor X (James McAvoy), Magneto (Michael Fassbender), Mystique (Jennifer Lawrence) and Beast (Nicholas Hoult), while taking its inspiration from the 'Age of Apocalypse' storyline from the comics.

'X-Men: Apocalypse' will open in theaters on May 27, 2016. For more information on Apocalypse, here's our handy guide.

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