While walking to school in a thunderstorm, Tommy decides to uses his clock of the ages to send him back to Revolutionary times where hopefully there is a sunny day, and meets up with inventor, Ben Franklin. He not only is involved in Franklin's invention of the washing machine, but also fights the British at Breed's (Bunker) Hill.; The Nazis interrupt the christening of the new "Desert Bomber", kidnap the Young Allies and steal an incomplete version of the Borden Bomb Sight. Yet, the Allies avert total disaster and escape their captors.; The Young Allies escape to French North Africa, where they are set upon by the dreaded Berbers. After outwitting them, they make their way to an American's home, and the man takes then to see the French underground commander, General Leroux, who is told of the impending American invasion.; When the Emperor notes that the returned portfolio is empty, he orders the Whip to torture the Young Allies and find out what they've done with it. The Whip uses a truth machine on Tubby, who nearly reveals that the Young Allies have been passing the plans back and forth.; The Young Allies reach the radio station where General Leroux orders his troops to stop the attack on Duvall's forces as the Americans have arrived and have the situation well in hand.; Jeff becomes a lab assistant to Dr. Carstairs, who has been experimenting with a machine that tests the explosive power of demolition bombs. After he is brutally murdered by a villain called the Whip, the Young Allies chase after the killer, who escapes by airplane.; The Young Allies discover that the General Leroux they were introduced to was actually a Nazi in disguise named Duvall, and that the American invasion forces are in danger of walking into an ambush!; Unknown to the Whip, the Young Allies have crept aboard the airplane, which they use to down other Japanese aircraft before the Whip discovers what has happened. They capture the villain, but are shot down over Tokyo.; The Young Allies take on the Japanese forces, capturing a vital enemy portfolio, but are rounded up and thrown into a dungeon to await torture.