This article was originally published on October 11, 2018. It has been updated with additional story lines, including the events of season 20 . So you want to watch Grey’s Anatomy as it launches into its 21st season, but you aren’t exactly caught up? Maybe you only just recovered from a certain dreamy person making a permanent exit.

Maybe you swore off the medical drama when Izzie started sleeping with a ghost. Or maybe you’ve never laid eyes on an episode of Grey’s Anatomy in your entire life (who are you?). It can be intimidating to dive into a show with such a rich history, but that shouldn’t stop you from taking on Grey’s Anatomy in all its soapy, sexy, sometimes medical glory.

We’re having a great, often traumatic, time over in fictional Seattle, so why shouldn’t you? If you don’t have time to go back and watch the old episodes (they’re all streaming on Hulu and Netflix), regardless of where you left off, we get it! As a service to the public, we’ve created this handy Grey’s Anatomy guide just for you. It highlights some of the most important events and people in Grey ’ s history and provides information that should help you hang with even the most die-hard Grey’s fans. There’s nothing like watching the entire series, but this should come close! Now, what are you waiting for? It’s a beautiful day to save lives .

.. and get caught up on the longest-running prime-time medical drama in television history.

➽ Skip to: Season two | Season three.