Anna and Elsa return home and Regina faces a tough choice in the wake of the Snow Queen's spell. Meanwhile, Gold's quest puts Hook's fate in jeopardy; and back in the past, an intrusion at Rumplestiltskin's castle has repercussions for the future. (ABC)
U.S. air dates are in MM.DD.YY form. U.K. air dates are in DD.MM.YY form.
