The Vidiians experiment on B'Elanna, splitting her into two beings... one fully human, the other fully Klingon.
1-07: Ex Post Facto
Images of a murder victim’s last moments incriminate Tom Paris as the perpetrator.
On its maiden voyage, the starship Voyager is whisked across the galaxy by a powerful being.
Voyager's crew exhibit strange behavior as the ship mysteriously keeps turning back to the same nebula.