Enterprise Sickbay. Phlox analyzes the scans Quantum sent. Trip is confused: "T'Pol and I have been working with Trellium for weeks -- she hasn't shown any symptoms." Phlox points out that they haven't been successful in synthesizing the Trellium in any significant quantities. "The crew of the Selaya, however, had the misfortune of wandering into an asteroid field filled with the compound. Trellium-D is a potent neurotoxin to the Vulcan nervous system. It disrupts the synaptic pathways that allow them to control emotions. Unfortunately, the rate of decay is accelerating." I'm glad they actually came up with a pseudo-scientific reason for all these emotional upheavals, one that actually prevents them from finding an easy way around the anomalies. Kudos to the Poor, Stifled Writers.
Selaya. The Vulcombies wreak more havoc on their ship. "Is it too late?" Quantum comms Phlox. Phlox thinks he can rebuild T'Pol, but he needs to start right away. Quantum asks if there's anything he can do to help the Vulcan crew, but Phlox believes it's far too late for them: "The neurological damage is irreversible -- they're dying, Captain." T'Pol screams from the floor that Phlox is lying and wants the Vulcans to die. Quantum loses his connection. Dry ice creeps into the area, and Uh-Oh Hawkins announces that the Vulcombies have flooded them with hexofluorine. They may be completely bughouse, but those Vulcombies sure are resourceful with the fake toxins.