As Leo struggles to come to terms with being human, Mattie takes him back to the Hawkins' home, where a surprise night out allows them to confront their feelings for each other. Laura is determined to uncover the truth about the too-secret Operation Basswood and tries to enlist Dr. Neil Sommer's help, only for things to take an unexpected turn. Joe reluctantly decides to help Karen with Sam, and Niska receives a mysterious message.
Casts:
Katherine Parkinson, Gemma Chan, Emily Berrington, Lucy Carless, Colin Morgan, Theo Stevenson, Pixie Davies, Tom Goodman-Hill, Ivanno Jeremiah, Ruth Bradley, Billy Jenkins, Ukweli Roach, Dino Fetscher, Mark Bonnar, Holly Earl