Are the gospels primarily mythical legends? In this documentary, we explore evidence to the contrary in regard to Mark's gospel. The evidence points to Mark's gospel being based on the eyewitness testimony of Jesus' disciple Peter. Moreover, the evidence excludes conspiracy or hallucination from properly explaining Peter's testimony, thus establishing a firm reason to believe Peter's eyewitness testimony reflected historical events. This means Mark's gospel primarily consists of eyewitness testimony concerning historical events.