RATINGS: IMDB: 8.1 EPISODES DISC 1 S4, Ep0 28 Sep. 2014 Storybrooke Has Frozen Over Summarizes the series up to this point. A Tale of Two Sisters S4, Ep1 28 Sep. 2014 A Tale of Two Sisters Regina struggles to cope following Marian's arrival in Storybrooke, as a mysterious woman roams the town after emerging from Zelena's time portal. White Out S4, Ep2 5 Oct. 2014 White Out Elsa accidentally places Emma's life in danger when she traps both of them inside an ice cave, as flashbacks show Anna help a younger Charming to fight a warlord named Bo Peep. Rocky Road S4, Ep3 12 Oct. 2014 Rocky Road When an icy spell is cast on Marian, the residents of Storybrooke place the blame on Elsa, unaware the mysterious woman who runs the town's ice cream parlor has the same powers as Elsa and is trying to frame her. The Apprentice S4, Ep4 19 Oct. 2014 The Apprentice Hook asks Gold for his hand to be reattached for a first date with Emma, as flashbacks show when Anna made a deal with Rumplestiltskin. Breaking Glass S4, Ep5 26 Oct. 2014 Breaking Glass Regina reluctantly teams up with Emma to search for the Snow Queen after Sidney discovers her whereabouts, as flashbacks show a young Emma befriend a girl who, like her, is a runaway orphan. DISC 2 Family Business S4, Ep6 2 Nov. 2014 Family Business Emma becomes determined to discover the Snow Queen's plan after discovering she was once her foster mother and Belle searches for the Snow Queen's hideout, as flashbacks show her travel to Arendelle to discover the fate of her mother. The Snow Queen S4, Ep7 9 Nov. 2014 The Snow Queen Emma captures the Snow Queen and interrogates her at the sheriff's station and Regina and Robin's relationship grows increasingly complex, as flashbacks detail information about the Snow Queen's life in Arendelle. Smash the Mirror: Part 1 S4, Ep8 16 Nov. 2014 Smash the Mirror: Part 1 Gold interferes with the Snow Queen's plans for his own agenda, as flashbacks show the Snow Queen try to pit Elsa and Anna against each other. Emma turns to Gold for help getting her powers under control. Smash the Mirror: Part 2 S4, Ep9 16 Nov. 2014 Smash the Mirror: Part 2 As everyone races to stop Emma from giving up her powers, Robin finds a clue that could point Regina to the elusive author of the storybook. Fall S4, Ep10 30 Nov. 2014 Fall As the Spell of Shattered Sight approaches Storybrooke, Emma and Elsa search for Anna, Belle and the fairies work on an antidote, and Gold, with a reluctant Hook as his servant, works on an exit strategy. DISC 3 Shattered Sight S4, Ep11 7 Dec. 2014 Shattered Sight As the Spell of Shattered Sight hits Storybrooke, Emma and Elsa race against the clock to free themselves of the ribbons and take down the Snow Queen. Heroes and Villains S4, Ep12 14 Dec. 2014 Heroes and Villains In the aftermath of the Snow Queen's curse; Emma looks for a portal so Elsa, Anna and Kristoff can return to Arendelle, Regina makes a difficult choice, and Gold's quest for power reaches a dramatic conclusion. Darkness on the Edge of Town S4, Ep13 1 Mar. 2015 Darkness on the Edge of Town Hook and Belle search for a way to release the fairies from the Sorcerer's hat, Emma, Regina and Henry continue to look for clues that could lead them to the Author, and Gold and Ursula enlist Cruella to join their cause, as flashbacks show their first meeting. Unforgiven S4, Ep14 8 Mar. 2015 Unforgiven Regina and Henry turn to Marco and Pinocchio for help in their quest to find the Author. Emma worries that Mary Margaret and David are hiding something from her as they remain wary of Cruella and Ursula. Enter the Dragon S4, Ep15 15 Mar. 2015 Enter the Dragon In order to infiltrate the Queens of Darkness as a spy, Regina has to prove that she is still a villain. Meanwhile, Hook asks Belle for an unusual favor, and Henry makes progress on his search for the Author. DISC 4 Poor Unfortunate Soul S4, Ep16 22 Mar. 2015 Poor Unfortunate Soul Hook tries to make a deal with Ursula as flashbacks show their complicated past, while Regina struggles to maintain her cover with Gold, Cruella and Maleficent. Best Laid Plans S4, Ep17 29 Mar. 2015 Best Laid Plans Maleficent puts Storybrooke under a sleeping curse in an attempt to steal the page that the Author is trapped inside. Mary Margaret and David struggle with their guilt as flashbacks show them go to extreme lengths to protect their unborn child from darkness. Heart of Gold S4, Ep18 12 Apr. 2015 Heart of Gold The Author joins forces with Gold and Regina fears for Robin's safety, as flashbacks show what happened to Robin after leaving Storybrooke with Marian and Roland. Sympathy for the De Vil S4, Ep19 19 Apr. 2015 Sympathy for the De Vil Regina's plans to head to New York to rescue Robin from Zelena are halted when Cruella kidnaps Henry, as flashbacks show her encounter the Author, who encourages her to stand up to her oppressive mother. Lily S4, Ep20 26 Apr. 2015 Lily Emma realizes Maleficent's daughter is her former childhood friend Lily and leaves Storybrooke with Regina to find her, as well as to rescue Robin from Zelena. DISC 5 Mother S4, Ep21 3 May 2015 Mother Emma reunites Maleficent with Lily, who is still hell bent on seeking revenge against Mary Margaret and David. Meanwhile, Regina and Robin struggle to cope with the implications of Zelena's pregnancy. Operation Mongoose: Part 1 S4, Ep22 10 May 2015 Operation Mongoose: Part 1 The Author proves to be a formidable wild card and forges an alliance with Gold. Emma, her parents, Hook and Regina scramble to stop them, but when Gold and the Author turn the tables on heroes and villains alike, the prospect of any happy outcome appears worlds away. Henry discovers he has big shoes to fill as he steps up to save his family before the story's final page is turned. It's a race to the finish, and everything culminates with a shocking twist that will leave the residents of Storybrooke reeling. Operation Mongoose: Part 2 S4, Ep23 10 May 2015 Operation Mongoose: Part 2 The author aligns with Gold, while Emma, her parents, Hook and Regina try to stop them; Henry steps up to save his family.