stardate 50614.2. In response to a distress signal, Chakotay lands his shuttlecraft on a planet's surface but is viciously attacked. Meanwhile, after Janeway and her crew find a suspicious Borg ship disabled and adrift in space with a thousand members of the powerful Borg race lying dead aboard it, they transport one of the corpses to Sickbay to perform an autopsy.

stardate 50693.2. The Doctor undertakes a personality enhancement project on the Holodeck, incorporating several accomplished historical figure's traits and temperaments into his Starfleet database. But he also adopts several aberrant character traits from those non-fictional figures and is soon over taken by a dangerous, cruel Mister Hyde-like personality.