"Our Song" is a coming of age movie about three teenage girls growing up in the summertime in Crown Heights, Brooklyn. Lanisha, Joycelyn, and Maria are fifteen and sixteen-year old girls at a point in their lives where they are trying to discover themselves. The girls are living their lives happily and putting most of their energy into their high school band. One day after band practice they learn, from their friend Eleanor, that their school is going to close due to asbestos problems. With the introduction of this situation, the girls struggle to find figure out what to do with the rest of their lives. They soon realize that they are heading down different paths and are growing apart. .
Lanisha's parents are divorced and her boyfriend has just broken up with her. Her father works a lot and he sometimes promises her things that he cannot provide. Her mother loves and does her best to help her through her problems, but Lanisha is hurt when her mother bad-mouths her father for lying to her. Lanisha has been pregnant before but had an abortion because her mother felt that she was to young to have a child. She has depression and has thoughts of being shot in a random robbery. She is affected deeply when their friend, Eleanor commits suicide. When she hears the news about the school closing she tells her father and he suggests a school in his neighborhood. .
Joycelyn has many dreams of taking over as captain of the step squad and becoming a singer or if that does not work out she wants to open a boutique. Of the three of them she seems to have the most positive outlook on life. She knows what she wants and does not let anyone take advantage of her. For example, at the party when a boy tries to get her to leave the party with him, she immediately refuses his offers. Over the course of the summer she begins pulling away from Lanisha and Maria and begins hanging with Kim and Keshia because she feels that they are more in tune with her ambitions.