In this follow-up to the earlier episode "
Pathfinder,"
Robert Picardo plays the dual role of the holographic Doctor and the Doctor's creator, Lewis Zimmerman. With the help of a transmitter rigged by Reginald Barclay (
Dwight Schultz), the Doctor is transported to the Alpha Quandrant, in hopes of saving the life of the mortally ill Zimmerman. Alas, Zimmerman turns down this help, on the grounds that the Doctor is a mere Mark One Hologram, and thus dreadfully outdated. Co-written by actor Picardo, "
Life Line" first aired on May 10, 2000. ~ Hal Erickson, All Movie Guide