‘Dune: Prophecy’ Season 1 Episode 3 Recap: The Meaning of Sacrifice

Season 1, Episode 4: ‘Sisterhood Above All’

They share a last name and a mission, but Valya and Tula Harkonnen are two very different women. At least that’s what “Dune: Prophecy” primed us to believe until this week’s episode.

Tula, played by Olivia Williams as an adult and Emma Canning as a young woman, is the sensitive one, the sister who goes along to get along. Her older sister, Valya (Emily Watson all grown up, Jessica Barden in flashbacks), is the one who rages against House Atreides for slandering her great-grandfather as a traitor. She is equally angry with her own family, especially her mother, Sonya (Polly Walker), and her uncle, Evgeny (Mark Addy), for meekly accepting their fate of exile on Lankiveil, a frozen wasteland of a planet. Sonya warns Tula and her brother, an aspiring politician named Griffin (Earl Cave), to stay away from their sister, a “wolf” who will devour them both with her ambition.

But both siblings are fond of Valya. Why wouldn’t they be? For one thing, the three of them seem to be the only members of the family willing to show one another consistent affection. For another, Valya saved Griffin from drowning by using the Voice on him, forcing his muscles to swim through icy water to the surface.

So when Griffin is murdered, allegedly by an Atreides, after Valya encourages him to get involved in Imperial politics, her thirst for vengeance consumes Tula as well. The younger sister poses as the lover of a young Atreides, then massacres him and the entire male side of his family the night before a big traditional hunt. She spares only a disabled young teenager named Albert (Archie Barnes, whom you may remember as the bold young Lord Oscar Tully from “House of the Dragon’), to whom she had been friendly the day before.

Thus, House Harkonnen has its vengeance — not that Tula and Valya’s older relatives are anything but aghast. It’s not only the murders they object to; it’s also the involvement of Tula, of whom they clearly have a higher opinion than they do of Valya.

But the Harkonnen sisters weren’t out to curry their family’s favor with this mission; Valya, at least, was more interested in scoring points with the Sisterhood’s mother superior, Raquella, who had encouraged her to go home and take care of family business so that she could fully commit to the order. Her disgraced surname hangs around her neck like a millstone — Raquella’s granddaughter and apparent successor, Dorotea, hates Valya for being a Harkonnen as much as for anything else. You can almost feel Valya’s defiance as she makes her move via Tula: Fine, Dorotea. I’ll give you something to hate me for.