The Walking Dead

I have started watching The Walking Dead season 11 on Disneyplus. I originally watched season 1 on Channel 5. It then moved to Skyone so I would not get to watch it. I would hear about various scenes and characters that would follow. You had the Bad Lip Reading parodies. Episode 1 starts off with Maggie, Darryl, Negan and others at a military base. I didn't think that the Walkers would rest. They are after supplies. In another place you have these characters that I am unaware of. The soldiers are dressed like Stormtroopers. This organisation called The Commonwealth interrogates the detainees. I am interested to see how it ends. I do wonder if an explanation is given how to it all started and why. I may look at a few episodes.