"A Bitter Draught" is the second episode of the sixth season of the American fantasy drama series Once Upon a Time, which aired on October 2, 2016.

In this episode, when a mysterious person surfaces in Storybrooke to seek vengeance, Regina, David and Snow band together to stop him, Emma turns to Archie to find out why she continues to have visions of her future, The Evil Queen attempts to win Zelena over, and Hook agrees to help Belle protect her and unborn child from Gold.

Hoping that it will make Regina suffer, The Evil Queen tells Zelena that "She can never escape who she really is.” She then takes a box that will be useful in her plans.

Speaking of Regina, she visits Granny's the following day and helps the residents welcome the newcomers, when suddenly a person who is revealed to be Edmond shows up to give Henry a letter to hand to Snow and David.

When Regina recognized who they were taking about, she tells Snow and David that she hired him to finish the job of killing them back in the Enchanted Forest.

The two are then confronted by the Evil Queen, who also weakened Regina's powers and revealed that she is controlling Edmond by using his heart to kill the Charmings.

At the docks, Edmond shows up to fight Snow and David, and knocked them out after he tells them that the Evil Queen was alive.

With Belle returning to Storybrooke, she asks for a safe place to stay and get away from Gold, so she takes refuge on Hook's ship.