Tom visits Whit to talk to him about a student in Tom's Sunday School class--Digger Digwillow. Digger doesn't show any interest in learning about Scripture and thinks the Bible is boring. So Whit decides to work on an invention that may raise Digger's interest. When Digger visits, Whit introduces him to the Imagination Station. Whit explains that it's an invention which, through the imagination, helps people to experience the Bible and history.
Digger doesn't think it will work on him, but he climbs in, pushes the red button, and soars back to first-century Jerusalem. There, Digger lives through the last week of Jesus' earthly life-from the Triumphal Entry to the Last Supper; to the trial, the crucifixion, and the resurrection. Digger also personally encounters the Saviour. In the process, Digger gets nearly trampled by a crowd, arrested by Roman soldiers, thrown into prison, and learns to believe.