The girls arrive at Carson Estate for a weeklong stay with Ken's wealthy aunt. But on their very first night, a prized horse and saddle go missing.

Everyone's a suspect, so the Barbies hunt for clues to clear their names. Are Lady Puddington's muddy shoes a sign of guilt — or just a fashion crime?

Denholm seems awfully suspicious... until Lady Carson reveals she might have a motive. Ken and Marcus arrive in London. Cassidy makes an unexpected move.

Brooklyn and Malibu follow Cassidy to Venice, where they're pulled into a fashion-forward side quest and reunite with an old friend.

The teen detectives split up into three different groups: one to find Pepper, one to track down Dietrich, and one to keep an eye on Giovanni.

Surprising confessions come to light as Brooklyn and Malibu team up to protect precious cargo aboard a speeding train headed back to England.

With the competition looming and Pepper still on the loose, the Carsons need another horse — and someone to ride her. The gang sets a trap for Giovanni.

The Barbies have a plan to rescue the horses, recover the saddle and win the championship, too. But it'll take everyone on the team to pull it off!