Hypernauts (1996)

Three cadets from the Academy Of Galactic Exploration and a Pyrian princess are in a distant sector of the galaxy, when they encounter the warfaring Triad, who had destroyed Pyrus and other planets. Unable to match the Triad's firepower in their ship, they have to rely on stealth and speed to avoid their clutches. They must warn Earth, but dare not lead the Triad to their homeworld.