Well, the first major confrontation with the Whisperers did not go well, but it could have been worse. Lydia returned to her mother willingly to save the two hilltop people, so nobody died. And this leaves the door open for Lydia to escape or otherwise return. Now that she has seen that it's possible to live in a civilized manner, it's doubtful that she will be content with her former life, which will put her at odds with Alpha, and perhaps in a position to influence some of the others. We also learned that there are more Whisperers than were first apparent, but not so many as to be a major threat-- unless Alpha is still holding back some of her forces.
It's interesting that Alpha seemed to only care about getting her daughter back, yet was willing to let the real Walkers eat the baby. And didn't seem to care at all that Hilltop saved the baby and kept it. It was kind of nice how the baby ended up in the custody of the old couple who were still missing their dead son.
Meanwhile, on the other side of the episode we had a rare, but welcome, adventure in humor-- or at least lightheartedness-- as Ezekiel and his pals visited a Zombie-infested movie theater to get a light bulb for their projector. The humor actually started in the prologue (which was a flashback to when Maggie was still the boss at hilltop and Jesus was still alive), when Jerry announced that he and his SO were having a baby and had some misadventures with his chewing gum. In the prologue, Ezekiel also came into possession of Michonne's charter, although the exact reasoning behind that eluded me. But Ezekiel, in the present, hopes to get the thing signed at the upcoming Faire, which would make him, Tara, Michonne, and whoever is leading Oceanside the new Founding Fathers. The Sanctuary was also listed on the document, but that community is defunct.
Henry, understandably, was not happy about Lydia being traded back to the Whisperers, even if it was her decision, and has set out after her. The kid is a pain in the ass. He also left a note, resulting in Daryl going after him, and the deaf girl tagging along much to grumpy Daryl's dismay.