Many Christians today accept the evolutionist claim that the earth is 4.5 billion years old. Most of them have never carefully considered what the Bible says about Noah’s Flood. So they believe it was a local flood in the Mesopotamian valley in the Middle East, or a myth. In this lecture Dr. Mortenson focuses on the biblical evidence for the historical, global, catastrophic Flood. He presents seven lines of evidence that the Flood really happened in history. He then gives eleven evidences that it was global and five evidences from Scripture that it was catastrophic. He ends with some spiritual implications of the Flood.