Universally heralded as the very best of the animated stories,
"Yesteryear" was penned by D.C. Fontana, a writer and story consultant
for the original series, who also served as the animated series producer.
"Yesteryear" is the sequel to the original series episode "City on the
Edge of Forever" by Harlan Ellison. The story begins with Mr. Spock
returning from a time-traveling research project to find no one onboard
the Enterprise remembers him. Now he must go back through the time
gate to his Vulcan childhood, and save the life of the child he was.
The many complicated issues explored in this story raise it far above
the standard Saturday morning fare.