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Henry Mills: Welcome to Operation Cuckoo's Nest.
Emma Swan: I haven't seen the movie in a long time, but didn't that end with a lobotomy?
Henry Mills and Emma Swan src

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.


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During Fourth Curse

Weapons, Items and Magic Involved


On-Screen Notes