1x5 - Star Trek: Hidden Frontier

Captain Knapp briefly clashes with new XO Elizabeth Shelby's attitude, before the Excelsior heads off to investigate the disappearance of the Nova-class USS Perihelion. Arriving at the ship's last known coordinates, they discover the ship in an impossibly close orbit of a quantum singularity, alongside an unknown vessel that dwarfs the Excelsior. But when an investigation reveals the strange, deleterious effects that the singularity had on the Perihelion crew and now the Excelsior crew as well, they realize what the ramifications could be for the entire galaxy.