Marta Walsh, a curious 12-year-old girl in a small southern California town, learns from Catholic friends that eight soon-to-be 8th grade girls will be invited to live at Mission del Pueblo and help with activities there. Her father, a former Catholic, expresses concern about the potential influence of the church on his younger daughter. Marta's participation in the program opens new family conversations and brings unexpected experiences, dilemmas, and discoveries.