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.
Not streaming on a subscription service in the US right now.
Starring Bruce Boxleitner, Claudia Christian, Mira Furlan, Shari Belafonte, Stephen Furst, Patricia Tallman, Jeff Conaway, Clyde Kusatsu, William Sanderson, Josh Coxx