1The New Hunter
Max wakes up in his new foster home to discover his foster parents have vanished. Max and his new brothers and sisters embark on an adventure to find them.
2Saganash
The Hunters stay home from school to search for their missing parents and find more than they were expecting in the Hunter House Library. Anika leads a museum tour.
3The Secret Room
The Hunters discover a secret room in the house. A clue sends Tess on the trail of a mysterious figure.
4Principal
When Max gets into trouble at school, the headmistress decides she must speak with his foster parents.The kids scramble to distract her from their absence.
5Rinus
Max & Tess track the mysterious Rinus through Amsterdam and discover a cryptic notebook. Back at the Hunter house the other kids make a mess while trying to cheer themselves up.
6The Key
Max and Tess follow a clue to an Amsterdam cemetery where they uncover an old family secret and unknown key. Meanwhile, Anika has suspicions about the new cleaning lady.
7The Blue Diamond
The Hunter kids put on a diamond exhibition to lure their nemesis out of hiding.
8MGP
A mysterious message helps the Hunter kids track down the elusive 'Magpie' but it may be too late as others suspect the kids are home alone.
9Aunt Hedwig & Uncle Eugene
Distant relatives Aunt Hedwig and Uncle Eugene are brought in to look after the Hunter children. The kids worry their relatives are more interested in the Hunter fortune than helping the family.
10Contact
The Hunters attempt a high stakes exchange to rescue their parents while working to outwit Aunt Hedwig and Uncle Eugene.
11The Relatives
A new foster couple temporarily takes in Anika and Sal while Max and Tess uncover news about the blue diamond.
12The Red Diamond
The kids begin to unravel the mystery around the missing red diamond. Max keeps a secret from his siblings.
13Cassandra's Map
When the discovery of an old map points the kids' towards the red diamond, Max makes a secret deal with a nemesis.
14Anika's Birthday
Tess and Max work together to trick their foes. Anika doesn't want to celebrate her birthday.
15The Maze
Tess journeys into a maze of underground tunnels to find the red diamond. Max has to conquer his fears. The Hunters get a surprise visit. Max and Tess meet with the hooded figure.
16Undercover
Max tracks a possible suspect while the other kids search the house for new clues. Anika takes on an unlikely mission.
17Sophie
The Hunter kids capture a surprising trespasser and must hide their new guest from Tim and Simone.
18Bruhl
The Hunter kids must band together to outwit one of their biggest opponents.
19Almost Back
The Hunters make a huge breakthrough but also suffer a big setback as they get closer to their ultimate goal.
20The Deed
The final villain is revealed as the kids race to solve the last clues and unlock the mystery.