Laura and Mad Sweeney try to get along on the road. Shadow's tortured by a man called Mr. Town.
Ben and the mermaid enact a plan to ruin the oil company's plans. But nothing goes as expected.
Shadow continues his journey with Wednesday— even to the other side of consciousness and beyond.
After Sean's body washes up in a fishing net, things get sketchy for Ben, Sheriff Bishop, and Xander.
Ryn deals with guilt over what she's done while Ben discovers new information about his father's relationship to Big Oil
Katrina is fighting to take back the merclan, while Ryn is helping Maddie fight for her mother Susan's safety.
Mira's about to enact her final plan— to close the Crossing forever and decimate the Alpha world irreparably.
Catherine visits Room 104, where she's confronted by the disembodied voice of another woman— who could she be?
Ben struggles with the siren's song effects, but Ryn also struggles with her feelings for him and Maddie, too.
Mira enacts her plan for vengeance, surprising even Yanek.
Howard Prime and Emily work together. Peter and Clare hide out amongst the ghosts of her former life.
Ben's struggling with Ryn's siren song, as she also struggles to hold onto power amongst her people.