A group of teenagers are on a school trip to Croatia, but when the bus flat-tires they have to stay in an abandoned village. There the group of friends get sent to another dimension in a medieval time zone, they must now walk the path of 7 sins to save themselves and return home.

The residents are busy with the preparations for the school musical. Among the collected chests they find an ancient Inca treasure: The Grail of Eternal Friendship. Noa accidentally liberates the spirit that resides in this grail and gets stuck inside a painting. One by one they meet the same fate. Only by solving the riddles and fulfilling dangerous assignments can the mysterious curse be undone. But is their friendship strong enough?

In this show, the anubis residents hears from a ghost that the theater that they are about to perform in, that it burns down every hundred years and is about to happen again. They're forced go back to the past through a cursed clock that caused the fire at the time. Amber, Nienke, Patricia, Fabian, Jeroen and Appie have to follow directions to find the winding keys and stop the clock in time!

Nienke is studying medicine and working at the hospital when Appie is suddenly brought into the emergency room. She discovers that he has been cursed by a Germanic Order. There is only one way to help him and that is to get The Club of the Old Willow back together. It will be a race against time to save Appie, but even more a battle for the old friendship. Can the lure of adventure bring The Club back together? Can the old residents put aside their own differences and disputes?

There is confusion when Appie returns to the House of Anubis with the promise of wealth, as stated in an invitation he received. Fabian and Amber also return to the now dilapidated house, just like Marcel, Pim, Raphael and Sterre (the five of the sword). The seven ex-residents lose all contact with the outside world. Before the day's end, the seven must solve one very last mystery.