Once Upon a Time (2011)

S5E12 Souls of the Departed

Emma, Regina, Mary Margaret, David, Robin, Henry, and Gold make their way into the Underworld, determined to save Hook, but soon realize their task is far more challenging than they expected. The denizens of the Underworld, comprised of souls with unresolved issues and personal grudges, relentlessly pursue them at every corner. In the meantime, a flashback to the Enchanted Forest reveals a figure from the Evil Queen's history, who reappears to offer Regina an ideal birthday present.