[s4e2] White Out -

"White Out," the second episode of Once Upon a Time season four, aired on October 5, 2014, and focuses on Elsa trapping herself and Emma Swan in an ice cave in Storybrooke while flashing back to Anna's interaction with a young David. The episode, directed by Ron Underwood and written by Jane Espenson, deals with the fallout of the Frozen arc's arrival in town and features Bo Peep as a reimagined antagonist. For more detailed plot points and a recap, visit the Once Upon a Time Wiki .