While Enterprise travels through a section of the Expanse lethal to human neurology, Dr. Phlox must put the entire crew to sleep and handle all aspects of a working starship, but even with T'Pol's help, the doctor's skills might not be enough to keep the crew safe when complications arise. With the ship not moving out of the area fast enough, Dr. Phlox must figure out how to start the warp engines without blowing up the ship, while realizing he may not be entirely immune to the region's radiation himself.
