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Numenor's secrets are revealed during this week's 'The Lord of The Rings: The Rings of Power'

Míriel imagines a terrible future, and Adar is unmasked.

An image of Galadriel and Elendil walking through Númenor in Prime Video's "The Rings of Power." Credit: Prime Video

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Past and present collide as alliances are made and unmade in the fourth episode of The Rings of Power, titled "The Great Wave." Eärien, Arondir, and Galadriel take centerstage this time, as tensions rise in Númenor and the Southlands—and we finally get a glimpse of the mysterious Adar.

Highlights for the episode include a beautifully shot fight sequence between (you guessed it) Arondir and his captors, as well as a stunning opening scene with huge implications for Númenor. Notably, we don't see any sign of Nori or the Harfoots in this episode, indicating perhaps that they'll be the focus next week, when episode five premieres on September 23, 2022.

The Rings of Power received three out of four stars from USA Today's review. We’re recapping the series as it progresses. You can find our recap of the premiere, and our recap of the third episode. Follow along for our synopsis of the fourth episode, "The Great Wave."

What happens in episode four of Lord of the Rings: The Rings of Power?

At the episode's open, Míriel dreams of a monstrous flood that consumes Númenor, destroying the city. Later, on the streets, Chancellor Pharazôn (Trystan Gravelle) greets the people and pleads Míriel's case among the populace as Eärien watches. Eärien and Kemen (Leon Wadham), another draftsmanship apprentice, discuss the rising fear that the Elves will return to take over. In the palace, Míriel hears Elendil and Galadriel's plea to free Halbrand, and Galadriel demands to speak with Míriel's father; Galadriel ends up in prison for sedition as a result.

On the sea, Isildur hears the call from the land once again and sabotages his Sea Trials—along with those of his friends. In the tunnels in the Southlands, Arondir faces his captors. One of the Orcs has been gravely injured, and they beg for Adar, who they call Father. Adar (Joseph Mawle), an individual with graying skin and pointed ears, arrives and mournfully ends the Orc's life. He turns to Arondir and speaks to him in Quenya. "Where were you born, soldier?" Adar knows the town, and informs Arondir that he has been told lies, and to end them requires "the creation of a new world." He asks Arondir to deliver a message.

At the Elven tower, the refugees and Bronwyn usher more fleeing villagers into the stronghold. Hunger has made the refugees desperate, and Theo volunteers to travel to find food. He and his friend Rowan (Ian Blackburn) sneak away to hunt down supplies and come upon a desolate town. As clouds flood the sky, Orcs go after Theo—who wields the sword with Sauron's mark in order to escape. He climbs into a well to hide as the Orcs search for the sword.

Meanwhile, the Elves and Dwarves work to create Celebrimbor's tower. Celebrimbor reveals that he knew Elrond's father and that there have been issues with Durin. Deep in the mines, Disa and Elrond discuss Durin's suspicious behavior, and Disa lies about Durin's whereabouts, breaking Elrond's trust. He travels to the mines below the Mirrormere and discovers hidden veins of ore. Durin accuses Elrond of spying, and Elrond protests, noting that if Durin had not kept secrets he would not have developed concerns. Durin swears Elrond to secrecy before he reveals that the box from episode two contains a new ore—the first mithril. As they mend their friendship, a cave-in rocks the tunnel.

In Númenor, Earien runs into Kemen again, and Halbrand and Galadriel discuss their situation. The Chancellor arrives and says that Galadriel will be shipped back to the Elves; inevitably, she escapes instead. Galadriel breaks into Númenor's highest tower and finds the ailing king, Tar-Palantír (Ken Blackburn), and Míriel. Míriel explains that her father's love of the Elves caused huge unrest in the city, and shows Galadriel the Seeing Stone. Visions of the great wave that overwhelms Númenor in Míriel's dream engulf Galadriel, and it's revealed that the dream is in fact Númenor's very real future. Míriel insists that Númenor's prosperity depends on appeasing the gods by staying away from the Elves—Galadriel tries to show her another way.

At the Elven tower, Rowan returns without Theo, who is still trapped in the well. The Orcs continue to scour for him as he takes off through the darkness. He runs and runs until he is rescued by Arondir, who has ostensibly been freed by Adar to deliver his message. Arondir and Theo run through the woods in a haunting series of shots, as Arondir snags an arrow meant for Theo from the air and Bronwyn finds them. Eventually, they make it to the edge of the woods and manage to run out into the sunlight, where the Orcs cannot follow.

We learn that the beautiful singing we've been hearing throughout the sequence is actually Disa, who sings for the mountain to free the miners trapped within. She apologizes to Elrond, and Durin reveals that all the miners were found alive. Durin III has been stymieing Durin's efforts to mine mithril, and Durin and Elrond discuss the notion of legacy. After, Durin begs forgiveness from Durin III, who expresses his love for Durin. Durin reveals that he plans to join Elrond on his journey to Lindon—Durin III instructs him to learn from the trip.

Bronwyn and Arondir discuss the message Arondir brought—Adar asks that the villagers leave the Southlands behind or risk violent repercussions. Theo is then confronted by Waldreg (Geoff Morrell), the barkeeper, who reveals himself to be a supporter of Sauron and the original owner of the sword hilt.

In the tunnels, Adar (called "lord-Father") is informed of the sword's whereabouts. In Númenor, Galadriel prepares to leave as the city observes. As she leaves, the wind changes and a flood of white petals from the White Tree covers the streets—Míriel tells the populace that it is a sign that the judgment of the Valar is upon Númenor. She implores her people to join Galadriel's cause, and it's revealed that Galadriel is still in the city, and Halbrand has been freed. Míriel agrees to travel to Númenor with Galadriel, and Isildur and his friends volunteer to escort them. The episode ends as the citizens of Númenor offer to give their aid.

Episode five will premiere on Friday, September 23.

Where can you watch Lord of the Rings: The Rings of Power?

You can watch The Lord of the Rings: The Rings of Power through your Prime Video subscription. Prime Video is included with a general Prime membership, but you can also subscribe to Prime Video as a standalone service. Prime Video is available to Prime customers in more than 200 countries and territories and can be accessed through most web browsers with an internet connection. Prime Video is also available as a streaming app on numerous devices, including iOS and Android, Amazon Fire TV devices, Roku devices, Xbox, PlayStation, smart TVs and more.

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