It wasn’t made completely clear just who let Daryl out of his cell from the first half of Season 7. Many assumed it to be Jesus who ended up guiding the redneck back to Hilltop.
Episode 11 tells viewers that it was, in fact, Sherry, who let Daryl escape. In the letter read by Dwight, she details exactly why she helped him because she knew Daryl reminded Dwight of what he used to be before he became Negan’s killing machine, words that see Dwight break down in tears; another nail in the coffin of his allegiance to Negan.
Negan is also in his far less jokey form in the episode, adopting a more composed, unnerving disposition. While not openly stating it, it’s clear he has a feeling war is on the horizon. He knows too well what the newly-escaped Daryl’s next movements are, which is to come back and kill both him and Dwight.
The song that blasted into Daryl’s cell over and over again was back again in the episode. In a witty reference, it was heard again when Eugene turn on a music system only for the music to play. Staring at the hi-fi in disbelief, Eugene proves he’s only human by bobbing his head to the beat, a hilarious touch in an otherwise tense episode.