Plot summary
In Camelot, Emma discovers how Merlin became a tree, so she and Regina race against time to find a tear of lost first love to release him, before Arthur stops them. At the same time Henry tries to prove to Violet that he can be heroic after confronting her father Sir Morgan, but a dinner date turns into a heartbreaker for Henry, which leads to his tear being used to free Merlin. Even as Arthur vows to get even, Merlin agrees to help Emma free her from the darkness. In Storybrooke, Emma sends Gold and Merida into the woods so Gold can become the hero, but after seeing how cowardly he is, Merida takes the chipped cup and uses it to bring out his bravery.
As Henry convinced Emma to help Violet look for her horse, Regina, Hook, Robin, and Belle sneak into Emma's home and discover not just Excalibur, but the dreamcatcher, where Regina discovers Violet's memories, in which Emma used her to break Henry's heart back in Camelot in order to obtain Henry's teardrop. Regina and Henry both feel betrayed by Emma and shut her out of their life.
Credits
Adapted from Wikipedia contributors, Once Upon a Time season 5. HTML formatting and reference markers removed.