Meet Jack Stalwart. Code name: COURAGE. Jack is an ordinary kid who becomes a secret agent by night, thwarting evil all over the world as he searches for his missing brother, Max. An eager young scientist has brought to life a dangerous flesh-eating dinosaur by crossing its DNA with that of his pet dog, Freddie. Can Jack capture the dinosaur before it destroys New York City?

Secret agent Jack Stalwart searches for a diver missing from the Great Barrier Reef and a treasure that has vanished from the wreck of the HMS Pandora while trying to defeat a deadly band of pirates.

"On the eve of the first manned mission to Mars, Secret Agent Jack Stalwart learns that the mission's chief rocket engineer has disappeared. When he finds out that engineer is his father, Jack vows the kidnapper is going to live to regret it. Can Jack keep his cool to save the day?..."p. [4] of cover.

Aside from an anonymous note telling Jack that his brother Max was in trouble, he'd received no other communication in over six months. Now, Jack finally receives a coded message from Max possibly detailing his whereabouts. But soon duty calls, and Jack is whisked away to the sweltering savannah of Kenya before he can decipher it. Once there, a wise and kind Masai chief alerts Jack to a series of elephant killings where the corpses have been robbed...

"The Global Protection Force has summoned Secret Agent Jack Stalwart to Mexico to hunt down a stolen map leading to hidden Aztec gold. Suddenly, he finds himself trapped in the hands of one of the most treacherous hunters in the world. Can Jack stop Callous Carl and his band of thieves before they plunder again?"--p.[4] of cover.

Under the cover of darkness, a band of ninja thieves has stolen some of Japan's most priceless treasures, including an ancient samurai sword. Can Secret Agent jack Stalwart take on the gang before the treasures are lost forever?

The Global Protection Force refused to share any details with Jack about his brother's whereabouts, but on two previous missions, Jack had collected clues that pointed to Max being in Egypt. Now Jack has reason to believe that King Tut's diadem--a crown thought to have magical powers--is the cause of Max's disappearance. Can Jack prevent an ancient and terrible curse of the pharaohs from wreaking havoc and finally save Max?