Before "Orphan Black" season 4 hits the small screen on Thursday, Apr. 14, BBC America released a four-minute sneak preview of the premiere episode.

The four-minute video shows the first couple of minutes of the mysterious Project Leda clone named M.K. (Tatiana Maslany). She is seen running in the forest while wearing a sheep mask. She bumps into two men who are burying something or someone, so she runs away. The clip further reveals that MK is no stranger to Beth (Maslany) and they are both working on something that could be related to the cloning project.

The official synopsis for episode 1, titled "The Collapse of Nature," also reveals that Sarah's (Maslany) refuge in Iceland will be destroyed by a Neolution attack. This causes her to move to a different place again. She eventually realizes that no matter how far she and her family go, they will still be tracked down.

Executive producers John Fawcett and Graeme Manson revealed during the recent WonderCon that season 4 will be delving into the basic core of the pilot. "We really wanted to look at the first season this year," Manson told Entertainment Weekly. "We wanted to go back to that moment on the tracks with Beth and Sarah and go, 'What did Sarah miss?' There's more story there."

Fawcett added that they want to get the same feeling of the first season where no one could predict who the real bad guy is. Beth and Art's (Kevin Hanchard) dynamic police partnership will also be explored. Hanchard said, "Art's biggest fear is that he wasn't there for Beth and that's what haunts him."

As for Delphine's fate after she got shot in the previous season's finale, the producers would like to keep it a mystery. However, they admitted that her life-threatening fate has a big part in season 4.

"Orphan Black" season 4 premieres on Apr. 14 at 11 p.m. on BBC America.