Once Upon a Time 5x03 Sneak Peek Siege Perilous (HD)

Once Upon a Time 5x03 “Siege Perilous“ - In Camelot, the heroes feverishly work to free Merlin. Determined to help Emma, David embarks on a quest to retrieve a magical relic that Regina could use to communicate with the imprisoned sorcerer, but, when David leaves, ARTHUR insists on joining him because the dangers ahead are greater than he can imagine. Meanwhile, Mary Margaret discovers the fate of her old friend Lancelot. Back in Storybrooke, ARTHUR seeks David’s help to catch a thief who threatens the safe