When, Where To Watch 'Our Decay'An all- new episode of "Once Upon a Time" airs tonight on ABC, taking viewers on a journey back to the land of Oz. The promo trailer for episode 1. Our Decay," reveals that Hades (Greg Germann) visited Oz in the past and fell for the Wicked Witch, Zelena (Rebecca Mader). Meanwhile, in ABC's recently released sneak peek clips, Zelena uses the Scarecrow to create a time travel spell and Hades blackmails Gold (Robert Carlyle) into opening a portal to Storybrooke. The synopsis for episode 1.

Our Decay," reads: Emma (Jennifer Morrison), Snow (Ginnifer Goodwin), David (Josh Dallas), Regina (Lana Parrilla), Robin (Sean Maguire), Henry (Jared Gilmore) and Hook (Colin O'Donoghue) continue to search for a way to free everyone from the Underworld. At the mercy of Hades, Gold creates a portal to Storybrooke, which transports Belle, Zelena and Baby Hood to the Underworld. While Zelena and Regina get into a sibling squabble, Belle is reunited with Rumple only to learn some tremendously shocking news that will change her life forever. Meanwhile, Snow and David hopelessly attempt to send a message from the Underworld to their son, Neal. In flashbacks, Hades learns about Zelena's very special spell and pays her a visit in Oz with the intention of striking an alliance, but finds himself with more than just a partner in crime. Guest stars include Keegan Connor Tracy as Blue Fairy, Emma Caulfield as Blind Witch and Teri Reeves as Dorothy."Once Upon a Time" Episode 1. Watch Stoner Express Full Movie more. Our Decay," airs on Sunday, April 3 at 8: 0.

EDT on ABC. It will also be available the next day on abc. Tunes, Hulu, Amazon and more.

Viewers who can't watch on TV can view it on a computer, tablet or smartphone, through ABC's live stream service. If all else fails, watch the episode live here, here and here.

Use the following search parameters to narrow your results: subreddit:subreddit find submissions in "subreddit" author:username find submissions by "username"