

Then, the two of them get into an argument about privacy and their late mother's rules. The next morning, Lilli wakes up and discovers that she has started her first menstrual period while Richard awakens with an erection along with a nasty mood swing which he can’t explain.

His penchant for racing a lagoon shark sparks a domestic quarrel Lilli thinks he is foolhardy, but the liveliness makes Richard feel virile. Richard lets Lilli win the child's game Easter egg hunt and dives to find Lilli an adult's pearl as her reward. Both their bodies begin to physically developed and they become physically attracted to each other. They live in a house on the beach & spend their days together fishing, swimming, and exploring the island. Years later, both Richard and Lilli grow up into strong and beautiful teenagers. Together, the children survive solely on their resourcefulness and the bounty of their remote paradise. Sarah is buried on a scenic promontory overlooking the tidal reef area. When Richard and Lilli are about 8 years old, Sarah dies from pneumonia, leaving the kids to fend for themselves. She also cautiously demands them never to go to the forbidden side of the island. Richard & Lilli grow up & Sarah educates them from the Bible along with her own knowledge, including the facts of life. Sarah tries to raise the kids to be civilized, but she soon gives up as the orphaned boy, Richard was born and raised by young lovers on this same island and he influences the widow's daughter Lilli. The trio is stranded on a beautiful tropical island in the South Pacific. After days afloat, Kearney (a sailor who has been sent with them) attempts to kill the boy because of his excessive crying and Sarah angrily beats Kearney to death with a harpoon & dumps his body overboard.

In 1897, a widow named Sarah Hargrave and her two young kids (one of whom is the son of the castaways from the original film) are cast off from the ship they are travelling on due to the ship's crew are infected with cholera. Spoiler warning: The following contains plot details about
