The book of Daniel begins with Jews in captivity in Babylon. King Nebuchadnezzar orders his priests to interpret his dream or die. They can't seem to do the interpretation and fear for their lives. Daniel steps forward and volunteers an interpretation which pleases the King. Daniel continues to provide the King with dream interpretation. Daniel also continues to have many prophetic dreams of his own.
Shadrach, Meshach and Abednego are believers who refuse to bow down to the Babylonian god(s). The King ties them up and sends them to the furnace to be burned alive. They leave the furnace fully alive and unharmed. The Lord was with them and protected them because of their faithfulness.