Henry, Jessie, Violet, and Benny Alden are orphans looking for a place to live together as a family. Could a boxcar in the woods be their new home?--

The Alden children find mystery and adventure as they journey along the Little North Railroad in a caboose rented for the summer by their grandfather.

Henry, Jessie, Violet and Benny used to live in a boxcar. Now they have adventures everywhere they go. At a lighthouse, the children find a mystery in the night!

Benny's friend accompanies the Aldens to the South Seas for a vacation on a supposedly deserted island where they find an unusual mystery.

A friendly writer with a metal detector, the mysterious inhabitants of a tower house, and the discovery of a locket in the sand are ingredients for the Aldens' latest mystery.

When the Alden family climbs to the top of Old Flat Top Mountain, they encounter a mysterious mountain cave, a perilous rockslide, and a secret treasure.

While on a bicycle trip to their aunt's farm, the four Aldens help solve a mystery.

When their favorite pizza restaurant almost goes out of business, the Alden children try to help their friends stay open while they find out who is behind all their problems.

People line up around the block to buy Mama Tova's cupcakes. But who could be trying to steal her secret recipe? The Boxcar Children follow clues to a cupcake contest, where they must use their mystery-solving skills to find a thief.

The Boxcar children visit the old farmhouse where Grandfather and Aunt Jane grew up! But people in the nearby town seem to think something isn't quite right about the house. As the Boxcar Children investigate, they start to uncover secrets about the farm's past- dating all the way back to the Revolutionary War!