The Boys is soaring to new heights with the debut of Season 4.

According to Amazon, the latest season, which premiered with three episodes on June 13, is already up 21% in total viewers compared to Season 3 in the first four days since launch. Season 3 also debuted with three episodes at launch.

Season 4 is now among the Top 5 most-viewed TV seasons on Prime Video through its first 4 days, according to the streamer.

The company didn’t release hard data, but did also say that Season 4 tallied the second most viewers of any returning season on Prime Video through its first four days, behind only Reacher Season 2. Amazon reports that The Boys has now grown in global viewership every season.

Season 4 has done particularly well abroad, with 60% of its audience based outside the U.S. Amazon says the show had strong performance in Brazil, the UK and India.

More data on the show’s performance will undoubtedly be available next month, when Nielsen will release the streaming report for Season 4’s debut week. While Nielsen doesn’t split viewership by season, Season 4 is likely to help boost The Boys back into the Top 10.

This is good news for the series, though, as it illustrates that The Boys is retaining interest in between seasons. Depending on the performance as the rest of the season becomes available, this could bode well for the already announced fifth and final season.

The Boys is based on The New York Times best-selling comic by Garth Ennis and Darick Robertson, who also serve as executive producers, and developed by executive producer and showrunner Eric Kripke.

In Season 4, the world is on the brink. Victoria Neuman is closer than ever to the Oval Office and under the muscly thumb of Homelander, who is consolidating his power. Butcher, with only months to live, has lost Becca’s son and his job as The Boys’ leader. The rest of the team are fed up with his lies. With the stakes higher than ever, they have to find a way to work together and save the world before it’s too late.

The Boys stars Karl Urban, Jack Quaid, Antony Starr, Erin Moriarty, Jessie T. Usher, Laz Alonso, Chace Crawford, Tomer Capone, Karen Fukuhara, Colby Minifie, Claudia Doumit, and Cameron Crovetti. Season Four also will welcome Susan Heyward, Valorie Curry, and Jeffrey Dean Morgan.

Seth Rogen, Evan Goldberg, James Weaver, Neal H. Moritz, Pavun Shetty, Phil Sgriccia, Michaela Starr, Paul Grellong, David Reed, Meredith Glynn, Judalina Neira, Ken F. Levin, and Jason Netter also serve as executive producers. The Boys is produced by Sony Pictures Television, Amazon MGM Studios with Kripke Enterprises, Original Film, and Point Grey Pictures.