Still no word on the season's release date.
We'll find out when Season 4 premieres on Netflix.
In the trailer, a single mom and her adorable daughter live together on a small suburban street, playing hide and seek and generally having a great time until the day the daughter goes missing from a local playground. DeWitt's character is eventually able to locate Sarah after frantically searching for her along with her neighbors, but the incident prompts her to enlist the help of a unusual facility to make sure this doesn't happen again.
"'The key to good parenting", the trailer ominously reads, "is control". Yeah, I'm sure we're in for a pretty wild ride with this episode.
Anyone who's seen Black Mirror before will know what "completely safe" usually means in this show - something along the lines of "totally untested and highly dangerous" - and the chances of this turning out well would be zero. "The stories we're hearing are just truly inspirational".
The trailer is a short, one-minute look at the episode called "ArkAngel" which we received out of context stills for back in September. Though they do finally find the child, the incident prompts her to bring her daughter to a facility for an experimental treatment.