Babylon 5: Thirdspace 1998
Directed by Jesús Salvador Treviño | Starring: Bruce Boxleitner, Jeff Conaway, Stephen Furst, Clyde Kusatsu
Susan Ivanova discovers a derelict spaceship in hyperspace. They tow it back to Babylon 5, then strange things start happening. People are being telepathically taken over by aliens from another (third)space.