Agatha Armstrong and her trusty sidekick Mrs. Mac were once the world's most daring adventurers. But when her son Ant came along, everything changed and her devil-may-care ways took a backseat to being over-protective and terrified of anything that posed a risk. When Ant and his three friends discover a letter that hints the gold Tom Sawyer and Huck Finn found might actually be real, they set off to follow its clues, taking up the mantle of explorer which his mom long abandoned. Told through the eyes of JJ Harper, great-grandson to one of the men who helped hide the gold, Aggy must outwit both a nefarious rival from her past, intent on claiming the gold himself, and the dangers of the deep south to rescue her son and students, and along the way, regain her long lost lust for adventure. Based on elements of "The Adventures of Tom Sawyer" by Mark Twain.—Producers