Ranger, the time-traveling golden retriever with search-and-rescue training, travels to Colonial America to help the patriot cause Ranger's next mission finds him in the middle of the Revolutionary War. There he meets Isaac Pope, a fisherman turned soldier for the Continental Army. When General George Washington is in need of a spy to cross into enemy territory, Isaac is chosen for the dangerous task. Ranger must help Isaac remain safe and undetected, or the battle -- and their lives -- will be lost.