Summer Adventure: The Boxcar Children—Henry, Jessie, Violet, and Benny—are excited to spend the summer on their grandfather’s private island, anticipating a season full of exploration and fun.

Island Discoveries: On the island, they set up camp, uncover fascinating natural features, and delve into collecting treasures, all while enjoying their independence and strengthening their bond as siblings.

Mysterious Friend: The children meet Joe, a friendly and knowledgeable young man working on the island, who captivates them with stories and helps them uncover surprising connections to their family.

Unveiling Secrets: As they dig deeper into the island’s history and Joe’s background, they unravel unexpected mysteries, leading to heartwarming revelations about their own heritage and a deeper connection to their grandfather.