Miracle workers such as Benny Hinn are followed and interviwed in this American Undercover documentary. It questions if faith and prayer can heal. Miracle workers such as Benny Hinn are followed and interviwed in this American Undercover documentary. It questions if faith and prayer can heal. Miracle workers such as Benny Hinn are followed and interviwed in this American Undercover documentary. It questions if faith and prayer can heal. Miracle workers such as Benny Hinn are followed and interviwed in this American Undercover documentary. It questions if faith and prayer can heal.