https://www.pcgamer.com/inside-edens-gate-is-a-live-action-far-cry-5-short-film-coming-to-amazon-prime/

If the latest live action trailer for Far Cry 5 made you uncomfortable, then get ready for more crazed religious ranting and ritual from the same talent. Inside Eden's Gate is a live action short film preceding the events of Far Cry 5, set to launch exclusively on Amazon Prime's streaming service March 5. 

Ubisoft's announcement post describes the plot as follows: