A Jaridian probe lands on Earth and begins sucking energy from the Commonality. The Taelons use humans in a near-death state to keep their connection, while Lili and Sandoval try to find out what is draining the energy.

Siobhan Beckett falls while rock climbing. As the others search for her, she dreams that she is on trial for supporting the Taelons. Zo'or questions whether Sandoval's CVI imperative to serve the Taelons has broken down as others are experiencing.