1867
Jacob looked down at her body. It had been a day since she'd died, and she was starting to decompose. Yet Jacob sensed something alive about her, about Isabella. She was pregnant. Barely - a month at most - but she was. And by some miracle, the fetus was still alive. But not for long. He took her body back to the island, and managed to save the baby. He used Island Magic to keep it alive through development, and then he had a baby girl on his hands.
Somehow managing to keep secret from Richard that he had a daughter, Jacob raised the girl, who he called Ana. Ana became beautiful and funny and smart, but when she was 5 years old Jacob realized that she would die, and that he needed her to live longer, so he made her immortal like her father. Ana remained 5 years old until Jacob's death. Ana, like Hurley, had the ability to communicate with ghosts. Jacob told her everything she needed to know, and helped her to sneak onto the plane to leave the island.
2005
Cindy smiled at Zack and Emma. They were sweet children. And soon, they wouldn't be the only ones on the island. Claire had gotten pregnant on the island, with Charlie. She'd just had another baby, a girl. Cindy knew her job; she went down, took the girl, and injected Claire with the solution that would make her forget about her second pregnancy and her daughter. The Others raised the girl, naming her Ella.
When Widmore's men bombed the camp, she, Zack, Emma, and Ella escaped. Cindy managed to sneak the three kids onto the plane, but couldn't go with them because she didn't fit in the small section they were hiding in. She said goodbye and promised she would see them again, but hoped she wouldn't because that would mean they were back on the island.
2008
Kate smiled. When they'd gotten back from the island, Kate had found out that she was pregnant as a result of the night before she went back to the island. And now, she had a daughter, Mary. She promised her daughter that she would always love her.
2009
Miles was slightly confused. He'd been with this chic one night, it hadn't worked out, and now 9 months later he found out he was a father? He had a son? Why didn't Laura tell him 8 months earlier? She had told him he could name the boy, so Miles picked the name Nathan.
Now all the children have been introduced, along with, of course, the children already in the story. But what none of the children knew was that history was about to repeat itself for Ana, Ella, Mary, Nathan, Zack, Emma, Julian, Megan, Walt, Aaron, Charlie, Clementine, and Ji Yeon. The island wasn't done with them yet. And as the children have to go through much of what their parents did, both them and their parents try to find a way to end the cycle and save them and all the generations to come.