Malachi is the last prophet in the Old Testament. He preached after the time of Nehemiah, when the people of God had a form of religion yet denied the reality of a relationship with God. The message of his heart was that God wanted to have a love relationship with His people. They did the rituals they thought God wanted, but they were spiritually cold and apathetic. Malachi became a messenger of repentance God used to draw His people back to Himself.
This program is already assigned to that list.