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The premier is all about what happens to Stupid Son after he left The Group. It's just him surviving various encounters. As I harp on in the Dark Matter thread, even in this show protagonist males may never defeat females. He's not even allowed to win a thumb wrestle! He successfully runs away from three gun-shooting male donkey cavities, but he must lose his gear and water from a bat-wielding female who gives him some good wacks. (Obvious Negan allusion.) As he hides among an undead swarm who saved him from hungry dogs, the donkey cavities are back with two getting eaten by the swarm. They were males, so of course.

He ends up in a Safe Haven Community. If this was the last episode it would have been a nice happy ending, but naturally that's not going happen. It's going to be one of two things. The leader is the Evil Bastard Leader of the Safe Have Community such that this sanctuary is not all unicorns and rainbows as we are shown or a Donkey Cavity Who Just Has To Ruin It All will show up trying to take over for his own selfishness or otherwise results in a slaughterfest and/or walker invasion. He or she may already be inside the walls but not necessarily. It would be an interesting take if it's The Group who ruins it all as Stupid Son admonished at the end of Part 1. I will be pleasantly surprised if it's something else.