Jack Stalwart is an agent with the GPF.
That acronym stands for the Global Protection Force.
The GPF is a worldwide force of junior secret agents whose aim is to protect the world's people, places, and possessions. It was started in 1947 by a man named Ronald Barter, who wanted to stop criminals from harming things that mattered in the world. When Ronald died, under mysterious circumstances, his son Gerald took over. The GPF's main offices are located somewhere in the Arctic Circle.
When you read 'junior secret agents' it would not be unnatural to think those new in the espionage business. That is true here, of course, but in addition, we learn that the agents of the GPF, such as the hero of this series, Jack Stalwart, is a junior in life as well.
Jack Stalwart, agent of GPF, is nine years old.
He is the younger son of John and Corinne. John is an American aerospace engineer who recently headed up the Mars Mission Program. Corinne is originally British and now spends her extra time volunteering at Jacks' school as well as studying Asian art.
Jack has an older brother, Max, aged 12, who is also a GPF agent and has been one for some time now. In fact, Jack is now an operative because he discovered that Max was one when Max did not come home after a mission. In order to help look for his missing sibling, Jack goes on assignments and at the same time looks for clues as to Max's whereabouts.
It is important to note here that while both Jack and Max are agents, John and Corinne, loving parents who want only the best for their boys, have no clue that their kids go out at night on secret missions.
Jack is able to get to wherever his efforts are needed via The Magic Map. This "is a world map that hangs on every GPF agent's wall. Recently, it was upgraded from wood to a hi-tech, unbreakable glass. Once an agent places the country shape in the right spot, the map lights up and transports him or her to his or her mission. The agent returns precisely one minute after he or she left."
Jack also has other neat gadgets to help him out:
Watch Phone: The GPF's Watch Phone is worn by GPF agents around their wrists. It can make and receive phone calls, send and receive messages, play videos, unlock the Secret Agent Book Bag, and track an agent's whereabouts. The Watch Phone also carries the GPF's Melting Ink Pen. Just push the button to the left of the screen to eject this lifesaving gadget.
Secret Agent Book Bag: The GPF's Secret Agent Book Bag is licensed only to GPF agents. Inside are hi-tech gadgets necessary to foil bad guys and escape certain death. To unlock and lock, all an agent has to do is place his or her thumb on the zipper. The automatic thumbprint reader will identify him or her as the owner.
GPF Tablet: The GPF Tablet is a tablet computer used by GPF agents at home. On it, agents can access the GPF secure website, send encrypted e-mails, use the agent directory, and download mission-critical data.
Whizzy: Whizzy is Jack's magical miniature globe. Almost every night at 7: 30 p.m., the GPF uses him to send Jack the location of his next mission. Jack's parents don't know that Whizzy is anything but an ordinary globe.
Note: Throughout the adventures of Jack Stalwart, as mentioned above, he is looking for his missing brother Max. In the last recorded adventure of this series, he finds him. After that the adventures of Jack and Max continue in the series .