In this third installment, "Sisterhood Above All," we begin with a shellshocked Valya exiting the palace gates on Salusa Secundus with Sister Theodosia. Fearing that the Sisterhood's hold on the great houses is quickly slipping, they must act fast to regain control, especially with the Emperor's House Corrino.

Prophecy, while Mother Superior Valya Harkonnen endeavors to shore up the Sisterhood’s Imperium support in the present, we also return to flashback mode, and what Young Valya and her sister Tula (Emma Canning) were up to in the past,

Griffin Harkonnen, the only brother of Valya and Tula Harkonnen, makes a compelling introduction in Episode 3 of Dune: Prophecy. Once a powerful house, the Harkonnen family has been shunned by the Imperium and relegated to their home planet of Lankiveil, where they survive by harvesting whale fur.

Sisterhood above all” is the motto of Valya and Tula’s secretive organization, but its meaning seems to depend on which sister is saying it.

Prophecy - Episode 2 - “Two Wolves” are in play. If you’re not keeping up with the Harkonnens and Atreides drama, then you’ve been warned. Admittedly, what we know about Dune: Prophecy is unfolding at a steady clip.

Episode three of Dune: Prophecy looks back at Valya and Tula's past, providing the show's richest character drama yet.

The following review contains spoilers for the third episode of Dune Prophecy, “Sisterhood Above All”

Prophecy season one, episode three, "Sisterhood Above All," the series shows us flashbacks of Valya and Tula Harkonnen's past.

Dune: Prophecy, Episode 3, "Sisterhood Above All," dives deeper into Valya and Tula Harkonnen's histories, and reveals shocking secrets about them.

Prophecy episode 3, which has significant thematic meaning for House Harkonnen. 10,000 years earlier than Denis Villeneuve's movies on Dune's timeline, House Harkonnen and House Atreides are still at each other's throats.