Because they do not want to be separated, four orphaned children run away and live in an old abandoned boxcar

The adventures of the four Alden children as they spend a summer vacation on their very own island, purchased by Grandfather's father years ago.

Two brothers take summer jobs at a department store where a series of peculiar events brings them under suspicion.

The Aldens climb a mountain and find a mystery! The hike up Old Flat Top was only supposed to take a day, but a dangerous rockslide changes everything to reveal a hidden cave that just may hold a legendary treasure!