On Paradise Island, Hippolyta offers the Woman of Tomorrow refuge among the Amazons and adopts Kara Zor-El as her third daughter (after Diana and Nubia).
As an adopted Amazon, the Princess of Power adds some Wonder Woman accoutrements to her ensemble--golden tiara, belt, boots and bracelets (the bracelets must be hidden under her cuffs).
Meanwhile, Nubia is close to death and the only thing that will save her is a rare plant that grows on a Pacific Island.
Supergirl flies off to get the plant but she is attacked by a trio of magic shaman. She's rescued by a Chinese man, named Fong, who has dressed up as a white gorilla. These shaman have a fear of white gorillas. But their magic attack has robbed the Blonde Blockbuster of her powers. Later, she dresses up in the white gorilla costume and steals the magic totems from the shaman so she may regain her powers.
Returning to Paradise Island and saving Nubia's life, Supergirl decides to go back to Man's World rather than close herself off from the rest of humanity.
Note: Given that Linda has a new boyfriend in every issue, she can't be very serious about any of them, so it seems rather an over-reaction when she finds her latest fling is not a one-woman man. She's hardly a one-man woman.
Hippolyta says that Princess Kara is her third daughter, but has she forgotten about Donna Troy? Maybe the Queen is thinking in terms of age. In birth order, Diana would be first, Nubia second, Kara third and Donna fourth. Queen Hippolyta is Supergirl's third mother, given that her first mother, Allura In-Zee, is still living in Kandor and her second mother, Edna Danvers, is still living in Midvale.
Despite the caption at the end, the next issue is not "on sale during the last week in November." In fact, this nearly would have been the final issue of SUPERGIRL, as no more came out for many months. Then THE SUPERMAN FAMILY began and hers was one of the three rotating cover features in that title. Her first new story being in SUPERMAN FAMILY 165. Yet there would be a tenth and final issue of SUPERGIRL after that.
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Tomorrow: On Strike