Cora and Regina try to overpower Mr. Gold; dark magic tempts Mary Margaret; Rumplestiltskin offers his services to Cora.
Regina casts a spell in hope of finding out why Zelena was abandoned; Belle discovers what Zelena's ultimate goal is.
Sleuth Jennifer Shannon (Lori Loughlin) and Detective Lynwood (Barclay Hope) investigate a decades-old case involving the disappearance of a groom.