4-11: Observer Effect
With Hoshi and Trip suffering from a fatal illness, Organians study the Enterprise crew.
Tensions mount as different Vulcan factions fight for control of the Kir'Shara.
As Enterprise investigates sabotage, the crew continues their search for Dr. Phlox.
The Enterprise assists Emory Erickson, the inventory of the transporter, who is secretly trying to save his long-lost son.