Four orphaned siblings, determined to stay together as a family, decide to inhabit an abandoned boxcar and turn it into their new home in the woods. When one of the siblings falls ill, the others go out to seek a doctor to save their sister. Meanwhile, their wealthy grandfather has offered a sizable reward to anyone who has information about his grandchildren, hoping that they can all be reunited once more. As the children continue to evade being...

Dink and his friends unearth the mysterious truth behind the envelopes incorrectly delivered to his house.

The Aldens become involved in a community theater production of "The Wizard of Oz," which is systematically and mysteriously being sabotaged.

When Cam's grandparents are robbed on their way to her parents' surprise birthday party, Cam uses her photographic memory to solve the mystery.

Dink and his two friends help Lucky find the culprit who stole Lucky's winning lottery ticket.

Dink and his friends use their detective skills to locate a giant emerald missing from a statue delivered to Uncle Warren's museum in New York City.

When an elderly friend is injured, the Alden children offer to help him with his window-washing business in their small town of Greenfield and agree to help him solve a riddle that has arrived in a mysterious invitation.

While traveling on the train to San Francisco with his cousin Olivia's owl, Nate the Great and his dog Sludge must use all of their detective skills when the owl suddenly disappears.

While visiting Aunt Molly at a fancy downtown hotel, Cam uses her photographic memory to help one of the guests find her stolen luggage and pet cat, and to catch the thief.

The Aldens are spending a week at Camp Seagull on beautiful Claw Island. But as soon as camp begins, they realize that someone is not playing fair. Everything begins to go wrong for the Aldens they lose their luggage, Henry misplaces the camp flag, and the campers on the other team use one of Jessies ideas to score points for themselves. Are some campers so desperate to win the Olympics that they are willing to cheat? The Boxcar Children are...