Meanwhile, undetected by "Voyager", the crew of an observation ship of the Hierarchy species has been monitoring "Voyager"s passage. As they have done with other ships that pass through the nebula, the Hierarchy determines whether there is any value on the ships, and if so, attacks them. They are unable to scan "Voyager" via normal means, and instead use a microscopic tunneling scan. This latches onto the Doctor's program, allowing them to witness events experienced by the hologram, though they are unaware of where reality stops and the Doctor's fantasies begin. Though the Hierarchy's crewman Phlox (Jay Leggett) soon realizes their mistake, the Hierarchy has already issued the command to attack "Voyager" for their anti-matter reserves.