Once Upon a Time 5x10 - Broken Heart

In a Camelot flashback, Hook becomes a Dark One and his lustfor revernge against Rumplestilskin is re-ignited. When Emmaand Hook disagree about their best course of action, the finalpieces of the puzzle are revealed as events in Camelot catch upto the present and we witness a charged confrontation betweenthe forces of light and dark that sends our heroes on acollision course with destiny. Meanwhile, in Storybrooke,Hook's centuries old lust for revenge against Gold puts both oftheir fates in jeopardy while Emma's love faces the ultimatetest as she tries to convince Hook to turn away from thedarkness before she, Mary-Margaret, David and Regina embarkon a new mission as an unexpected evil is released.