When Booth's son, Parker, finds a finger in a bird's nest, the team launches an investigation to find the rest of the body; Booth asks Sweets to psychoanalyze his son; Sweets confronts Hodgins about his attitude in the lab.

Booth and Brennan investigate when the remains of a disliked office manager are found in a building elevator shaft; Angela and Hodgins try to figure out their altered relationship.