The fifth episode of Dune: Prophecy is coming soon. Dune: Prophecy is based on the 2012 novel Sisterhood of Dune, which was written by Brian Herbert, son of original Dune author Frank Herbert. The series significantly expands the world of the Dune franchise, and is set 10,000 years before the events of the Dune films. The story of Dune: Prophecy follows Valya Harkonnen, the leader of the sisterhood known as the Bene Gesserit, who are trying to prevent a prophecy referred to as “The Reckoning.”

https://screenrant.com/dune-prophecy-episode-5-release-date-time/