This book contains three fiction stories with some realistic elements and facts; they are about the adventures of two close friends, James and Jack.
The first story is about their adventures near the Netherlands railroad crossing.
In the second story, they explore the Titanic shipwreck. They go on an expedition to the Atlantic Ocean and go to the ocean floor and observe the details of the lost ship.
The third story is about their mission to explore the planets that make up our solar system. They go on the space shuttle and ride on the ship until it stops working in space. A meteor brings them back to Earth safely.