WORST: Leaving a skeleton crew
Gabriel made the call to send most of the best fighters from Alexandria on the mission to check out the cave and that left the community with some capable fighters, but a small number who were vulnerable to an attack.
Finally, the opening scene with Beta going underground into a tunnel made sense, as the hulking individual made his way up through the ground and entered Alexandria at night without being detected by any survivors.
It didn’t take long for Beta to find his first victims. Three individuals getting fitted for with their gear for the fight were easy targets for the knife-wielding Whisperer. And then, his mission continued as the slain targets reanimated.
Beta then got to his target: Gamma. Now, the only member of Alpha’s crew remaining in Alexandria is at the mercy of “Frowny McTwoKnives” whose mission is to bring her back to be judged by the leader of the Whisperers.