- 1
Pilot
Henry's parents decide that it's best for him to go to a high school after traveling the world. In his new school, he meets new friends and uncovers a huge secret.
- 2
The Griffin Gang
Henry must find a cure when an ancient virus is released.
- 3
Sleeper in a Box
Investigating a strange "stone," Henry and his friends discover that the object is actually the remains of the Soviet satellite Sputnik - that's wanted by Russian mobsters.
- 4
Heart of a Warrior
A traveling Samurai exhibit, rumored to be haunted, comes to the museum. When, Henry discovers that some of the exhibit items are being stolen, he is not believed by his uncle. Henry, Maggie and Jasper therefore try to take matters into their own hands, shadowing a martial artist, who they suspect is the thief.
- 5
Fountain of Truth
Inside a trunk, Henry encounters artifacts, which guide him to a discovery by Ponce de Leon.
- 6
Public School Enemies
Henry stumbles upon a secret in the Dillinger car.
- 7
Liberian Candidate
Henry runs into an old friend and rival from the past. Henry believes that this friend's father may be targeted for assassination.
- 8
Curse of the Rolling Stone
When a ruby, which is supposed to be cursed, ends up stolen, Henry and his friends try to find the ruby and return it to the museum.
- 9
Now You See Me
After a teenage magician makes a Senator's son vanish, using an old magic trick of Houdini, the disappearance is investigated by Henry.
- 10
Maximum Insecurity
When a gang of thieves try to steal a WWII computer, Maggie, Jasper and Henry are cornered in the museum, unable to escape.
- 11
Thor's Slammer
Henry tries to clear his uncle's name by solving the murder of the former partner of Jasper's father and finding a Viking artifact that he was looking for.
- 12
Speetlemania
The gang discovers an extinct beetle species.
- 13
Past, Presidents and Future
Henry follows a clue trail left by George Washington as a school election pits Jasper vs. Maggie.