Synopsis:
Superman saves an alien tree, the last remaining life-form on its planet, by bringing it to Earth and planting it in Metropolis Park. However, the "tree" is really a female alien who wants Superman for herself, and tries to kill Lois.
Synopsis:
Lois and Superman learn the truth about the super-family -- defective Superman robot X-3 built a robot mermaid wife and son on the faraway planet because he wanted a life like Superman's.