Stuart, Elle, and Tristan discover a secret underground lab beneath the military base. Stuart determines that Elle has been dosed with deadly Huon particles, which were being manufactured in the lab. Their presence alerts General Raikov, who reveals that Tristan has been working with him all along and was responsible for dosing Elle. Tristan's true identity is Colonel Tristan Smith, Raikov's second in command, showing that he betrayed Elle from the beginning.