Yes, 'Finding Carter' is based on a true story. It draws inspiration from real - life events which add an extra layer of authenticity to the show's narrative.
The love story in 'Finding Carter' mainly revolves around Carter and Jared. Carter has a lot going on in her life after finding out about her real family. Jared is there for her. They start to have feelings for each other. It's a story of young love that has to deal with secrets, lies, and the chaos of Carter's new - found family situation.
One key element is the idea of a girl being reunited with her family under unexpected circumstances. Carter discovers that the family she thought was hers is not, and she has to adjust to a new family situation.
In the 'kid a gary carter story', Gary Carter might be a local figure. Maybe he was a shop owner who was always friendly to the kid. Or perhaps he was an old-timer in the neighborhood who had many interesting stories to tell, and the kid was always drawn to him, and that's how their story began.
One key element is how the two universes are merged. In a 'transformers crossover finding carter' fanfiction, it's important to see how the characters from both interact. For example, how the Transformers' technology might affect the world of 'Finding Carter'.
I'm not sure of specific 'transformers crossover finding carter' fanfictions off the top of my head. But you can try searching on fanfiction websites like Archive of Our Own. They usually have a wide variety of crossovers.
It could be friendship. The Carter boys might have strong bonds with each other and their friends, and these relationships could be central to the story. Another theme might be loyalty, as they stand by one another through tough times.