Jasmine (Karen David) and Aladdin's (Deniz Akdeniz) story will soon be told in "Once Upon a Time." Meanwhile, the story behind Dr. Jekyll (Hank Harris) and Mr. Hyde (Sam Witwer) will also unfold, but with a shocking twist in the upcoming fourth episode of the series.

TV Line reports that Jasmine will also be working as a teacher in episode 5 of "Once Upon a Time" season 6 in Storybrooke Elementary School, where Snow (Ginnifer Goodwin) comes back as a school teacher. The episode — titled "Street Rats" — will tell more of the story behind Jasmine and Aladdin. Season 6's fifth episode will be aired on Oct. 23.

Meanwhile, the complex story of Dr. Jekyll and Mr. Hyde will be revealed in the season's fourth episode, titled "Strange Case." Give the episode title, it is anticipated that the story behind the two will be told since they originated as characters from "The Strange Case of Dr. Jekyll and Mr. Hyde." According to the synopsis posted by The Futon Critic, "Back in the past, Rumplestiltskin helps Dr. Jekyll complete his serum to separate a man's personality into two - good and evil - but his help comes with a hefty price."

Although it is easy to point out that Mr. Hyde is the more evil of the two, there might be more to their dynamic as two different personalities. In the episode 4 promo of "Once Upon a Time," Mr. Hyde claims that he is not the monster out of him and Dr. Jekyll. If Dr. Jekyll is the real monster, what circumstances could have led him into becoming a monster?

In the present, Mr. Hyde is freed by the Evil Queen (Lana Parrilla) to prevent him from helping Regina figure out how she survived and to stop her for good, while Dr. Jekyll will be working with Dr. Whale (David Anders) to figure out how the Evil Queen was resurrected from the dead.

"Once Upon a Time" season 6 airs every Sunday at 8 p.m. EDT on ABC.