Tatiana Maslany
Tatiana Maslany holds her award for best actress in a TV drama for her role in "Orphan Black" backstage at the 2015 Canadian Screen Awards in Toronto, March 1, 2015. Reuters/Fred Thornhill

In Season 4 Episode 2 of “Orphan Black,” titled “Transgressive Border Crossing,” Sarah (Tatiana Maslany) will continue her investigation about Neolution. Felix (Jordan Gavaris) will begin his journey to self-discovery.

Spoiler alert! This article contains “Orphan Black” spoilers. Read on if you would like to know what happens next before the new episode airs.

The previous episode showcased the events that led to that fateful night on the tracks in Season 1, starring Beth Childs. In Season 4 Episode 2, Sarah will continue her search for Beth, the mysterious and elusive clone who started it all. She will most likely get into tight situations and talk to more dangerous people to gather vital details about Neolution. In the meantime, Alison and Donnie (Kristian Bruun) will host a hungry Helena.

Comic Book Movie writes that Sarah previously survived a Neolution attack Iceland and was compelled to come back home to look for a new ally. While following clues, Sarah discovered what Neolution was planning next. They were implanting dangerous devices in humans. The next episode will most likely provide more details about Neolution as Sarah continues her investigation. She may also learn more about the clone in the sheep mask, M.K.

Cosima is still dealing with the absence of Delphine (Evelyne Brochu). Felix will feel left out and start his independent journey to discover more about himself. The promo clip showed Cosima walking into a room and is surprised when she sees Felix naked.

In the promo video, a woman and her child, who apparently lived in a remote cabin, were shown packing their things quickly. The woman told the child that they had to go and proceeded to light a match to burn the house down. Sarah was also asking Cosima whether Beth ever knew or mentioned a clone named M.K., Cosima answered something about a clone in a mask.

The following scenes hinted that Sarah was getting involved in a Neolution war. She was also caught by someone while doing her rounds as she tried to gather more clues to find out more about Beth and what led her to leap to her death.

Orphan Black” Season 4 Episode 2 will air on April 21 on BBC America in the US and on Syfy in Australia. More updates and details are expected soon