Touch the rusty musket and follow the oldest four Johnston children back in time to five battles that changed the course of history and test the limits of their faith. When the four oldest Johnston children dig up a mysterious rusty musket with a name engraved in the stock of the rifle, they are swallowed up in a tornado of color and chaos and taken back in time to several battles that changed the course of history. They help biblical heroes conquer Philistine tyranny. They barely escape the fall of Jerusalem at the hands of the Romans in A.D. 70. where they witness the devastating judgment on a people who have forsaken the Messiah. They assist an army of civilian militia at the Battle of Tours in defending their freedom and their faith from hordes of Muslim invaders that far outnumber them. They are transported to the Lexington Green where they accompany the Minutemen as they face the charging British Redcoats. They see both sides of the Battle of Gettysburg and learn firsthand the horrors of slavery. They put their lives on the line to protect each other and to fight for freedom alongside the heroes of history. With these lessons of liberty and images of courage firmly etched in their minds, they are then ushered into the future, where they have the opportunity to apply what they have learned to help their posterity resist tyranny and live free. Will the final battle cost them their lives? Will they ever make it home?