Babylon 5: Thirdspace

In "Babylon 5: Thirdspace" (1998), the crew of the space station Babylon 5 discovers an ancient artifact known as the Thirdspace gate. As they investigate its origins and purpose, they unwittingly unleash a powerful alien force that threatens not only the station but the entire galaxy. Captain Sheridan and his team must race against time to stop the alien menace before it consumes everything in its path.