Holden and Jeff step up their efforts to learn about Edgar Abbott, and uncover more than they bargained for. Willa turns to Luke for help in understanding what's going on with Holden – leaving Luke conflicted. Charlie begins to comprehend the danger Diego presents, and has a tense confrontation with a surprising foe. Meanwhile, Diane and Tom struggle with how to continue their work for Agent Borden. And as part of his new role at Hollow Sky, Yellow Jacket pays a visit to Pastor Ian.