Real kids, real places

After biking to Mount Vernon, the historic home of George Washington, Christina, Grant, Mimi and Papa find themselves wrapped up in yet another perplexing mystery that takes them on a tour of the building's history.

Four young friends are having the times of their lives at Disney World until they start disappearing one after another.

Mimi, Papa, Christina, and Grant travel to Tombstone, Arizona, and find themselves helping new friends, Jorge and Rosita, uncover the secret of the haunted mine.

Christina and Grant are headed up the Mississippi River from New Orleans to meet Sam and Jake in St. Louis who are heading down river from Minnesota, but find themselves embroiled in a mystery that takes them over locks and dams and past Tom Sawyer's cave.

Christina, Grant, Lee, and Lana track down a missing dinosaur skeleton at Chicago's historic Field Museum.

Christina, Grant, Shelly, and Allison travel along California's historic Old Mission Trail, hoping to solve a mystery that has them all completely baffled.

Christina, Grant, Derian, and C.F. Thomas learn about the history of Boston and the Boston Marathon as they try to locate their schoolteacher cousin who has disappeared in the middle of the race.

Christina, Grant, April, and Denise find themselves involved in a Christmas mystery that starts in Washington, D.C., and ends in the Oval Office.

Mimi inherits a gold mine and is joined by her grandchildren and husband on an adventure to find out where it is, and along the way they learn about the Gold Rush era.

Stacy, Trent, Wendy, and Michael visit the famous Biltmore House in Asheville, North Carolina, where they encounter some creepy ghosts and a scary basement, and discover a missing antique chess set.