Until now there has been no readily available study per-se on the impact of Scripture Union Programmes (SUPs) in alleviating the challenges faced by adolescents in secondary schools in Zimbabwe. There are several challenges universally faced by adolescents as a result of socio-economic problems which have become a global concern. The problems can only be tackled through a holistic strategy. Millions of teenage girls fall pregnant and adolescents contract sexually transmitted infections each year. To aggravate the situation the suicide rate by teenagers has considerably catapulted across the globe leading to endemic violence even in the schools. Zimbabwe can not be excluded from adolescent problems where the challenges continue to escalate at an alarming tempo both in rural and urban schools. The study was commenced due to amplified drug abuse, violent juvenile delinquencies, teenage pregnancies, baby dumping and even bizarre suicide cases among school pupils in Zimbabwe. With particular reference to Harare’s High Glen Zone where three schools were sampled, the study examined the impact of Scripture Union programmes on behaviour modification of secondary schools pupils.