This episode is about when Caroline remebers back on her aniversary to when her and Charles were young children.
Some highlights:
Charles is stuck in the middle of nowhere with a broken wagon wheel.
Charles gives Caroline a "seed" necklace (young) and then he never shows up for the "barn dance" and caroline gets mad and storms off home. Then Charles goes to her house and begs her to listen why he wasn't there. It ends up the school bullies beat him up, and then they have there own dance.