This is an automatically translated description

A week before Christmas, strange events begin to happen in the close-knit Mystery family - one by one, relatives around the world disappear. It turns out that the genius of the criminal world Morton Mystery is behind it - yes, and the noble and super-talented Mystery clan has its own black sheep. What is Uncle Morton's goal?

To find their missing relatives and thwart the intruder's plans, Agatha, Larry and Mr Kent set off immediately. In a week they will have to travel around the world, visit the most amazing places in Argentina, Namibia, New Zealand, and Easter Island... Will the young detectives manage to stop the villain, find the treasure... and celebrate Christmas at home?