Once Upon a Time - Season 5 - Eps 3: Siege Perilous
In Camelot, the heroes feverishly work to free Merlin. Determined to help Emma, David embarks on a quest to retrieve a magical relic that Regina could use to communicate with the imprisoned sorcerer, but, when David leaves, Arthur insists on joining him because the dangers ahead are greater than he can imagine. Meanwhile, Mary Margaret discovers the fate of her old friend Lancelot. Back in Storybrooke, Arthur seeks David’s help to catch a thief who threatens the safety of the citizens of Camelot. Across town, Emma reaches out to a conflicted Hook as she sets about her plan to draw Excalibur from the stone.
About Once Upon a Time

Title: Once Upon a Time
First Air Date: 2011-10-23
Last Air Date: 2018-05-18
Status: Ended
Rating: 7.4/10 (from 2310 votes)
Language: EN
Seasons: 8
Total Episodes: 156
Network: ABC
Genres: Drama, Sci-Fi & Fantasy
Production Companies: Kitsis/Horowitz, ABC Studios
Synopsis
There is a town in Maine where every story book character you've ever known is trapped between two worlds, victims of a powerful curse. Only one knows the truth and only one can break the spell. Emma Swan is a 28-year-old bail bonds collector who has been supporting herself since she was abandoned as a baby. Things change for her when her son Henry, whom she abandoned years ago, finds her and asks for her help explaining that she is from a different world where she is Snow White's missing daughter.
Cast

Lana Parrilla
Regina Mills / Evil Queen

Colin O'Donoghue
Captain Hook

Robert Carlyle
Mr. Gold / Rumplestiltskin / Weaver

Gabrielle Anwar
Victoria Belfrey / Lady Tremaine

Dania Ramirez
Jacinda Vidrio / Cinderella

Mekia Cox
Sabine / Tiana

Andrew J. West
Henry Mills

Alison Fernandez
Lucy Vidrio