Star Trek: Hidden Frontier (2000)

S1E1 Enemy Unknown, Part One

As the Dominion War reaches its climax, Captain Ian Quincy Knapp, at the helm of the USS Devonshire, stumbles upon a mysterious and formidable new threat lurking within the McAllister Nebula. This unknown force exudes a dark and sinister energy, posing a significant challenge to Knapp and his crew at a critical moment in the conflict.