ONCE UPON A TIME: ‘The Price’ Photos

ONCE UPON A TIME - "The Price" - In an effort to protect Emma, Regina steps up in a surprising way that will test her mettle as a force for good. King Arthur and Queen Guinevere throw a royal ball to welcome the heroes to Camelot, but when the celebration takes a deadly turn, David and Robin must leap into action or lose a crucial asset in the fight to save Emma. Back in Storybrooke, Hook deploys a tried-and-true technique in hopes of bringing Emma back to the light while the heroes discover that some unexpected baggage has followed them home from Camelot, on "Once Upon a Time," SUNDAY, OCTOBER 4 (8:00-9:00 p.m., ET) on the ABC Television Network. (ABC/Jack Rowand) LANA PARRILLA