06/30/25

[mishey22]

"Operation Mongoose Part 2" is the twenty-second and final episode of Season Four of ABC's Once Upon a Time. It was written by Edward Kitsis & Adam Horowitz, and directed by Ralph Hemecker. It is the eighty-eighth episode of the series overall, and premiered on May 10, 2015.

This episode is the second part of the season four finale, and premiered immediately following "Operation Mongoose Part 1."