Once Upon a Time (2011)
Operation Mongoose (2) (4x23)
Season finale
Air date: May 10, 2015
As Emma, her parents, Hook and Regina scramble to stop them, the Author and Gold raise the stakes by turning the tables on heroes and villains alike.
- Premiered: Oct 2011
- Episodes: 156
- Followers: 26,0k
- Ended
- ABC (US)
- Friday at 20
