The Alden children have discovered a ghost in the old boxacar that once was their home.

The Alden's neighbor, Lina wants the Alden children to help find a treasure hidden in her attic.

Henry, Jessie, Violet, and Benny, known as the Boxcar children, are visiting their friend Fran in Wisconsin and they can't wait to hear the tale of the runaway ghost.

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.

Henry, Jessie, Violet, and Benny used to live in a boxcar. Now they have adventures everywhere they go! What will they find on vacation on a tropical island?

When their grandfather buys a bookstore at auction in New Orleans, the Alden children help clean it up and discover that several people seem to be obsessed with the store and its contents.

The Aldens must uncover who is trying to shut down their favorite ice cream shop.

The Boxcar children are on an exciting show in which a camera crew follows them around Philadelphia as they search for clues, but someone is giving them the wrong directions.

The Alden children travel on a Mississippi paddle-wheel steamer to visit an old family friend in his cabin near Hannibal, Missouri, and try to discover who is responsible for the mysterious activities near the house.

Relates the exploits of the four Alden children as they locate a missing man. The Boxcar children are determined to solve the mystery that surrounds an old yellow house on their grandfather's property. Strange things have happened in that house where long ago a man disappeared.