Operation Cuckoo's Nest

{{Event Operation Cuckoo's Nest is a mission featured on ABC's Once Upon a Time. It makes its début in the twenty-first episode of the sixth season. {{TOC}}
 * image=NoImage.jpg
 * name=Operation Best Man
 * status=Concluded
 * location=Storybrooke
 * participants=Emma Swan
 * Henry Mills
 * result=Emma escapes the sanitarium
 * onlyappearance = The Final Battle Part 1