In this all-new very special mini-series, the Aldens have been recruited by a secret society to return lost artifacts and treasures to their rightful locations—all around the world! After finding a painted turtle figurine, the Aldens are introduced to the Silverton family and Reddimus Society, a secret guild whose mission is to return lost artifacts and treasures to the sites they were taken from. The Aldens board a private train to New Mexico

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In this all-new very special mini-series, the Aldens have been recruited by a secret society to return lost artifacts and treasures to their rightful locations—all around the world! The Aldens arrive in Egypt but the agent they're supposed to meet has gone missing! With the help of a puzzle in a papyrus scroll, they figure out their next mission—to deliver a tiny ancient pharaoh statue to an archaeologist at the Pyramids! Along the way they

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In this all-new very special miniseries, the Aldens have been recruited by a secret society to return lost artifacts and treasures to their rightful locations—all around the world! The Aldens follow a clue to Beijing, China, where they uncover their next mission—to return a mysterious clay artifact to its rightful owner. Their journey leads them to a scenic section of the Great Wall, but a thief threatens to ruin their trip and endanger their...

When Henry, Jessie, Violet, and Benny boarded a train to help the Reddimus's Society return a stolen treasure, they didn't plan on traveling around the world. But after a close call with the society's archrivals — the Argents — it's now up to the Boxcar Children to return the remaining six artifacts to their rightful homes.
As the children travel through Egypt, Kenya, England, and Italy, can they stay one step ahead of those trying...

In this all-new very special miniseries, the Aldens have been recruited by a secret society to return lost artifacts and treasures to their rightful locations―all around the world! The final leg of the Aldens' journey brings them to South America and to the Salt Flats in northern Argentina. But when they hit a dead end, they realize someone has tricked them in order to delay their plans! Returning to Buenos Aires, the Aldens connect with the Silvertons...

The Alden siblings continue their mission to return lost artifacts around the world to their rightful homes by visiting the Pyramids in Egypt and Stonehenge in England, among other places, while outwitting a thief along the way.