The whole gang follows Emma into the Underworld, one mission save Killian. But when Regina's demons from her past are there to greet her, Robin and Regina fight to survive through all the chaos.

Regina and Robin meet when they're teenagers and they start developing a friendship, but as time goes on that friendship develops into something else. Those feelings only seem to get interrupted the moment Regina has to move because of family issues. Years later she comes back and gets a job at a very prestigious company only to then find out that her childhood friend is her employer. Will the feelings that they once thought they buried long ago come to the surface once again, or will they realize that it was all just child's play?