The Alden children are staying at the New England farmhouse where their grandfather grew up. There are many stories and legends about the old farm, and there's a woodshed near the house that holds a surprising secret... a secret that dates all the way back to the Revolutionary War!

Four orphans take shelter in an old boxcar during a storm, and, determined to make it their own, they turn it into a safe, cozy home.

When the Aldens come across a robbery at an antique store, they decide to use their detective skills to help locate the stolen ruby ring, bracelet, and necklace. Yet, before their investigation even begins, someone breaks into the Aldens' home and steals a box of Benny's favorite Silver Frosted Star cereal! Is there a hungry thief on the loose or is something else going on? The Boxcar Children have another mystery to solve.

The Aldens are all on the same soccer team, and know that winning isn't as important as having fun. But is someone trying to ruin the soccer league? Practice balls get deflated, a goalie's gloves are ruined, and a player is locked in the locker room during an important game. What's going on?

The four Aldens like visiting the large old museum owned by their grandfather's friend. But then Jessie sees a huge, scary shadow moving in the room where the dinosaur skeletons are on display. And bones from the enormous Tyrannosaurus rex disappear. They must find the missing bones and solve the mystery before an exhibit is scheduled to open — or there might not be a dinosaur exhibit at all!

The Aldens are in a community basketball league, and Buzz and Tipper Nettleton, Greenfield's most famous basketball stars, are coaching their teams! But Tipper's Most Valuable trophy is missing, and Buzz's practice schedules get mixed up. Is somebody trying to foul up the community league?

The Aldens are so excited when they get to meet other ballonists, learn how hot air balloons work, and even help the crew launch a balloon. Then, things start to go wrong. Someone is trying to ruin the rally, and the Boxcar Children might not get the chance to ride in a hot air balloon after all - unless they solve the mystery in time.

The Aldens are excited to visit their friend Seymour Curtis, who lives on a farm that's rumored to be haunted! When they arrive, they learn that valuable antiques have gone missing. Is the thief someone who Seymour knows? Or is it a ghost seeking revenge? The Boxcar Children have another mystery to solve!

Grandfather has just bought a plot of land in the Rocky Mountains — complete with a ghost town! When the Aldens hear their land is haunted, they don't believe it. But when they see a ghostly figure on the main street, they know something's up. There's a mystery here and the Aldens are determined to solve it!

The four Alden children, aged six to fourteen, uncover a mystery while volunteering at a food pantry for the needy.