The Hunters discover a cryptex, but Erik secretly takes it before they can find out what's inside. Max hears from his birth parents. And the police accuse Eric of art theft.

Erik wird aufs Polizeirevier gebracht, wo Daniel versucht, die Beweise gegen ihn zu finden.

Die Kinder finden die gestohlene Puzzleschachtel und versuchen, sie vor der Polizei zu verstecken.

Die Hunters lernen ein junges Mädchen namens Evie kennen

Als Mr. und Mrs. Hunter plötzlich vermisst werden, müssen ihre fünf Pflegekinder das Geheimnis ihres Verschwindens lösen, ohne dass jemand die Misere bemerkt.

Tess findet einen alten Stammbaum der Ruyboschs und bemerkt, dass auch er das Kronensymbol trägt.

The kids think Lucia framed Erik and decide to frame her back by planting a vase in her house. But the plan goes awry and they must work to avoid getting caught.

To save Erik from deeper trouble, the kids must get the vase out of Lucia's house before the police discover it. While Evie has her first day at school, the other kids come up with a plan to retrieve the hidden vase.

The reverse heist is on, but the plan involves many risky elements. Will the Hunter kids make it out of Lucia's house with the vase before being caught?

The Hunter kids realize one of the Relatives is a mole and devise a plan to uncover him/her. And Daniel can no longer work on the case now that they police have enough evidence to prosecute Erik.

Is Daniel working with the enemy? The Hunter kids confront him and he reveals a new piece of evidence. Each of the kids does their part to find the spy, but it is Anika who unwittingly uncovers the next piece of the puzzle.

The Hunters approach Detective Simon with their evidence, but are dismissed. Back at the house Apoll0 appears with news that he can find the hacker. A daring mission ensues and leads the kids to an abandoned railway yard.

Inside the hacker hideout they discover a map to a hidden room in the Hunter house! When the kids return home to find it, Max contacts them through the telegraph machine with one word - DANGER!

Apollo reveals the hacker's identity and plan; Anika and Jake attempt to contact Max. The Hunters confront the thief, but he escapes and locks them in the secret room.

Max ist zurück! Sal und Jennie enthüllen die Identität des Hackers. Und Evie entdeckt auf der Suche nach der Krone etwas Geheimnisvolles.

Lucia erhebt wieder Anspruch auf Evie.

Tess and Sal work on discovering the mole's identity. Daniel and Anika spy on Lucia; the hacker learns he has been tricked.

Diane shows up and takes the crown when Erik is forced to go to the police station. The children finally uncover the mole's true identity.

Tess and Jake desperately try to convince relatives that the mole has framed Erik, but Sal's evidence is needed to prove Erik's innocence and stop the thieves from escaping with the crown.