S11E11 · Rogue Element

Complete story — includes the ending

Eugene has entered a relationship with Stephanie and tells her he loves her; shortly after she says she loves him too, she mysteriously disappears. Eugene becomes obsessed with finding Stephanie and breaks into a man's house looking for evidence but fails and Princess insists that she must have broken up with and abandoned him. Eugene soon finds Stephanie again colluding with Lance for an unknown task and gets Lance to confess "Stephanie" was a plant named Shira who was used to get Eugene to confess the location of Alexandria due to too many inconsistencies during the group's auditing. Lance tells Eugene the group is better off now despite his heart being broken by Shira. Connie and Kelly investigate the Commonwealth military and their treatment of Tyler Davis; and Carol helps Lance deal with a neighboring community whose leader is extorting the Commonwealth for money. Eugene is later approached by "Max", who reveals herself to be the woman he was in contact with over the radio.