The Dr. Stone Season 4 Episode 21 release date and time is right around the corner. The previous episode showcased Senku sending Suika and Francois to a safe distance to revive the advance party following self-petrification with the reactivated Medusa. Soon, they see the Americans searching for the team while holding Ginro and Matsukaze captive. Later, one of Stanley’s operatives is bitten by a poisonous spider and gets paralyzed.
Here’s all you need to know about the 21st episode of Dr. Stone Season 4, as well as how to stream it online.
When is the Dr. Stone Season 4 Episode 21 release date & time?
The episode’s release date is September 4, 2025, and its release time is 10:00 PM JST, 5:00 AM PT, and 8:00 AM ET.
Check out its release times in the U.S. below:
| Timezone | Release Date | Release Time |
|---|---|---|
| Eastern Time | September 4, 2025 | 8:00 AM |
| Pacific Time | September 4, 2025 | 5:00 AM |
Where to watch Dr. Stone Season 4 Episode 21
You can watch Dr. Stone Season 4 Episode 21 via Crunchyroll.
Crunchyroll is a popular streaming service that mainly focuses on anime, manga, and Asian dramas, making it a favorite choice for fans of Japanese entertainment. It offers a huge library of anime series, movies, and simulcasts, which means viewers can watch the latest episodes shortly after they air in Japan. The platform offers a free version with limited content access and ads, and a paid version offering unlimited content access without ads.
What is Dr. Stone about?
The official synopsis for Dr. Stone is as follows:
“One fateful day, all of humanity was petrified by a blinding flash of light. After several millennia, high schooler Taiju awakens and finds himself lost in a world of statues. However, he’s not alone! His science-loving friend Senku’s been up and running for a few months, and he’s got a grand plan in mind, to kickstart civilization with the power of science!“
