What is the main conflict in The Face on the Milk Carton by Caroline B. Cooney?

A typical school day shatters for fifteenyear-old Janie Johnson during lunch period as she stares at the picture of a kidnapped child on the milk carton that she recognizes as herself. This incident trips a series of flashbacks where Janie Johnson (actually Jennie Spring) begins to remember her family and the circumstances surrounding her abduction.