What's new on streaming: "House of the Dragon" and "America's Sweethearts"

• The "Game of Thrones" prequel returns to the Targaryen civil war, with Westeros bracing for a more brutal phase of the fight for the Iron Throne.
• What they're saying: Early reviews rank it among the highest seasons of the "Game of Thrones" universe.

"The Agency" — Season 2 available Sunday on Paramount+

• Michael Fassbender returns as Martian, a CIA agent whose personal and professional lives keep colliding as he tries to protect the woman he was forced to leave behind.
• Behind the scenes: The spy thriller is based on the acclaimed French series "Le Bureau des Légendes."

"America's Sweethearts: Dallas Cowboys Cheerleaders" — Season 3 available now on Netflix

• The docuseries follows veterans and rookies competing for spots on the Dallas Cowboys Cheerleaders squad, from the first auditions since the Netflix series raised the squad's global profile to training camp and game-day pressure.
• By the numbers: Netflix says 30 veterans returned with only six spots open for newcomers.

"Never Change!" — available now on Hulu

• In this comedy, former classmates are forced to return to high school in their 30s after a tornado cuts short their senior year.

• The latest: The movie premiered at Tribeca Film Festival this month.

"Voicemails for Isabelle" — available Friday on Netflix

• Zoey Deutch stars as a woman leaving confessional voicemails for her late sister, only for the messages to reach a stranger (Nick Robinson) who starts falling for her from afar.
• Zoom in: Writer-director Leah McKendrick told People the film was inspired by her relationship with her sister and classic rom-coms including "Jerry Maguire," "Sleepless in Seattle" and "Notting Hill."

Go deeper: See last week's picks.