The Sandman is abducted and held captive for over a century, turning the real world and the dream world into chaos. After his escape, he must restore order to save the world. That's the simple version. The show can be a bit slow at times and the CGI needs improvement, but overall this is an amazing show! Great casting. Tom Sturridge is Dream and does a great job carrying the show. Even his look and slender frame help make the character more believable.
Also - it's really funny how many reviewers are outraged by the fact some characters are female, or black or LGBTQ. We are talking about a fantasy show. Who cares if they changed some of the characters? "Are they telling a good story?" Is the only question we should be asking. There are a million shows with all straight white casts. Hollywood has also notoriously whitewashed characters who weren't fictional just to appease white viewers. Where was the outrage when the blue eyed Burt Lancaster played an Apache chief or Elizabeth Taylor played Cleopatra? Remember when Angelina Jolie played Mariane Pearl who is a Afro-Cuban women in real life. Jake Gyllenhaal played the Prince of Persia. Liam Neeson played Ra's al Ghul in Batman. Tilda Swinton played The Ancient One in Doctor Strange. The list goes on and on and on... I'm sorry if it makes you feel uncomfortable when you see diversity in a show. Maybe you should think about why that is?