A sudden, surprising birth on a crowded subway car throws five young women – each living vastly different lives – into an unexpected connection. A quiet girl longing for belonging, a wealthy teen defying expectations, a tech-savvy hacker from a tough neighborhood, and a fiercely independent artist find themselves united by their desire to support a teenage mother. As they navigate the challenges of adolescence together, this unlikely group discovers the power of friendship and begins sharing experiences that will test them all.