3x01 'The Heart of the Truest Believer' - Synopsis

ONCE UPON A TIME - “Heart of the Truest Believer” - As Emma, Mary Margaret, David, Regina, Mr. Gold and Hook enter Neverland to search for a kidnapped Henry, they’re greeted by a school of not-to-friendly mermaids who threaten to end their search before it begins; Henry finds himself on the run from the Lost Boys with another escapee from Peter Pan’s encampment; and Neal, recovering from his wounds, travels through the Enchanted Forest with Mulan in an attempt to learn the fates of Emma and Henry, on the Season Premiere of “Once Upon a Time,” SUNDAY, SEPTEMBER 29 (8:00-9:00 p.m., ET) on the ABC Television Network. (ABC/Jack Rowand)