Stranger Things season 4: release date, trailer, cast and what we know

Stranger Things season 4 filming was well underway... until the coronavirus pandemic effectively shut down entertainment production the world over. While we may soon see filming resume on the Netflix sci-fi smash hit, it's worth noting that we know a fair amount about Stranger Things season 4 already, with an official trailer revealing what happened to Hopper (David Harbour) after the end of season 3. 

Hopper, then, is alive and in a Russian prison. So what else can we expect from Stranger Things season 4? The overall story is kept under lock and key, of course, but the scripts have been finished. Fan speculation also points towards season 4 taking place against the backdrop of 1986's Chernobyl disaster, which seems to line up timing-wise. 

Here's everything we know about Stranger Things season 4 on Netflix so far, including its likely release date, production updates, and more.