As the mystery surrounding Desmond Heart grows, the sisterhood is at real risk in 'Dune: Prophecy' Episode 3. Here's what you need to know.

Prophecy takes place 10,000 years before the Dune movies. It tells the story of Valya Harkonnen as she leads her Bene Gesserit in an attempt to stop a prophecy known as "The Reckoning". The cast includes Emily Watson,

Prophecy’ takes a breather after the tense events of Episode 2 and resorts to flashbacks to give the audience a better understanding of the situation. The arrival of Desmond Hart marks quite a trouble for the Sisterhood,