A modern re-telling of Wizard of Oz. Except it's not, but it is. It's weird. Admittedly the only story of Wizard of Oz that I remember is the original movie, and of course Michael Jackson's version...but let's not talk about that. So that being said, if there is a book, or play, or illustrated comic about it I'm not aware of it.
First episode in and you've got Dorothy coming to Oz in a cop car via tornado which is how she gets her cop dog german shepard. "Toto" means dog in native Oz apparently. So a highly trained dog now responds to a name it's never heard before...le sigh. And the cop car has very little in the way of supplies. I thought all cop cars now had a trunk full of machine guns, vests, ammo, etc. Which would have been awesome. Dorothy kitted out like Rambo. But apparently this one only has a 9mm one clip and the first aid kit you'd find in the bathroom of a truck stop.
To avoid spoilers I won't say more, but suffice to say it doesn't follow what I remember from the movie except in the most basic terms. Which could be good. It's weird, and yet I want to watch more.