A super special mystery for the Boxcar Children!

There's just one problem. Someone has stolen the boxcar...with their dog, Watch, in it! If they can only find the missing boxcar, it will lead them to Watch.

Henry, Jessie, Violet, and Benny used to live alone in a boxcar. Now they have a home with their grandfather, and they are all visiting Virginia.

Henry, Jessie, Violet, and Benny along with their grandfather take a trip to Hawaii.

The four Aldens like rock hunting in the area, until Benny finds a sinkhole that leads to the underground caves. While exploring the caves they realize that someone doesn't want them there. But why?

Years ago, a man disappeared from the yellow house on Surprise Island. Why? The Aldens have found a clue to the mystery! Adapted from Gertrude Chandler Warner's story of the same name, this new version introduces young readers to a Boxcar Children classic.

When Benny's friend comes to visit the Alden house with his two-year-old brother Sam, the younger boy makes trouble everywhere he goes.

"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 archaelogist at the Pyramids! Along the way they outwit...

The Aldens are helping out at a doughnut shop, but when a rival store opens across town, strange events follow, and the children have a mouthwatering mystery to solve!

When the Aldens take up the case to investigate if a catastrophic oil spill that affected hundreds of species could have been prevented, they are led on an adventure to help other endangered animals around the world.