'Once Upon A Time' season 6 episode 12: What to expect from 'Murder Most Foul'

'Once Upon A Time' season 6 episode 12: What to expect on Murder Most Foul — Sean Maguire as Robin of Locksley (L) and Lana Parrilla as Regina (R) ABC/disneyabcpress.com

The twelfth episode of “Once Upon a Time” will highlight the team-up of Hook (Colin O'Donoghue) and Charming (Josh Dallas) in order to solve a mystery. It will also show how Regina (Lana Parilla) will help Robin (Sean Maguire) adjust to his new life but later on finds out that Robin has a deep dark secret.

ABC's fantasy-turned-reality series “Once Upon A Time” has returned with an episode that will reveal major changes that will affect the beloved characters of Storybrooke. These include the relationships of Hook and Charming and Regina and Robin.

Wanting to take the next step into his relationship with Emma (Jennifer Morrison), Hook tries his best to get on Emma’s father’s good side. With a goal of making David Nolan aka Prince Charming see him as a worthy man for his daughter, he tries to bond with his soon to be father-in-law.

Things did not go too well for Hook aka Killian Jones, as Charming asks for his assistance to uncover the truth behind the death of latter’s father. Wanting to impress Charming and make him see that he is more than just a pirate, Hook agrees to help the former out.

Regina Mills tries her best to make Robin Hood adjust to his newfound life in Storybrooke. But along the way, Regina finds out Robin’s dark secret. Apparently the new Robin has a dark side that makes things more complicated for Regina.

The episode will also reveal two characters who will be returning to the story. They are Pinocchio, also known as August, and the aforementioned Robin Hood of Locksley. These two characters will be portrayed by Eion Bailey and Sean Maguire respectively, according to Comic Book Movie.

The official synopsis of episode 12 says: "Before Hook takes the next step in his relationship with Emma, he wants to make sure David sees him as more than just a pirate. So when David asks Hook to help him uncover the truth about his father's death, Hook agrees. Meanwhile, Regina works to acclimate Robin to life in Storybrooke, but soon discovers he has a dark side that makes the task much more complicated than she anticipated." The synopsis was taken from the ABC website. (Video can be found at the end of the article.)

The title for the upcoming episode of “Once Upon a Time” is “Murder Most Foul.” Season 6 episode 12 is scheduled to be aired on March 12. The series airs every Sunday at 8:00 p.m. EST on ABC in the US.