Reviewing details from the first five episodes of the series and giving a preview of the rest of the season.
The Hunters discover a cryptex, but Erik secretly takes it before they can find out what it contains; Max hears from his birth parents; the police accuse Erik of art theft.
Max hears from his birth parents; Erik gets taken to the police station, where Daniel tries to find the evidence against him.
The kids find the stolen puzzle box and try to hide it from the police; Erik returns home, but he acts suspiciously; Daniel finds a clue in the museum footage; Max leaves for Spain.
The Hunters meet a young girl named Evie whose necklace has the same crown symbol as the cryptex; Erik reveals that he has a special connection to Evie.
The children find evidence that could prove Erik's innocence, but someone hacks into Sal's computer and erases the footage; Max realizes there is something strange about how his birth parents tracked him down.
Evie's stepmother, Lucia, tries to take her back; the Hunters attempt to track down information on Lucia by visiting Evie's old neighborhood, where they meet tech-loving Jennie and obtain footage that gives them their next clue.
When Tess finds an old Ruybosch family tree, she realizes that it bears the same crown symbol that they found on the necklace; Jenny helps Sal investigate the mysterious hacker; a comic book publishing company approaches Jake with a tempting offer.
The children 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.
The Hunter children attempt to make it out of Lucia's house with the vase before being caught.
The Hunter children devise a plan after realizing one of the relatives is a mole; Daniel can no longer work on the case when the police collect enough evidence to prosecute Erik.
The Hunter children confront Daniel, who reveals a new piece of evidence; Anika unwittingly uncovers the next piece of the puzzle.
The Hunters approach Detective Simon with their evidence, but are dismissed; Apollo appears with news that he can find the hacker; a daring mission leads the children to an abandoned railway yard.
Inside the hacker hideout, the children discover a map to a hidden room in the Hunter house; Max uses a telegraph machine to send a warning.
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.
Sal and Jennie discover the hacker's identity; Evie finds a mysterious object while searching for the crown.
Lucia makes another claim for Evie; Tess recognizes the object Evie found and thinks it will lead them to the true identity of the mole.
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.
Oliver and Anika have a new mystery - figuring out who their real dad is! An unexpected guest and an invitation to summer school sends them in a different direction.
Oliver, Jasmyn and Evie head to a book signing hoping for some bio-dad names. Meanwhile 'Sally' has a difficult initiation test by Miss Lucas, putting her cover under strain.
Jennie and Anika hit a dead end with their investigation into the bunny's holocode device, while the hunt for the twins' dad reveals a new name.
The Hunters struggle to free themselves from the lockdown created by Erik's security system via a series of riddles in their very own Hunter Street Escape Room adventure.
Evie struggles to convince the others there's someone else in the house, and with Erik and Kate departing, the Hunter kids are alone with a threat lurking in their midst.
Anika and Jennie try to get to the bottom of the mysterious VR headsets. Oliver, Florian and Jasmyn are in for a shock of their own when they pay a visit to Florian's house.
The Hunters plan a break-in at the Academy. While Anika, Jasmyn and Jennie get their spy on, the boys are set to work trying to find a potential code word to unlock the holocode.
The heist doesn't go as expected and the girls discover Miss Lucas's obsession. An unexpected reveal for Daniel and Evie leaves them reeling. Can Florian be trusted?
Miss Lucas is intent on proving that nothing suspicious is happening at the Academy. Meanwhile, Jasmyn calls Oliver for help, and the Florian situation begins to escalate.
Anika is noticeably different now she's 'Badika' but will the others realise there's anything wrong? Oliver, Jasmyn and Florian skip out on their chores and get an unexpected lead.
Anika leads an operation to kidnap Baby Harry, and Florian tries to pull the wool further over Oliver and Jasmyn's eyes. Evie, however, grows suspicious.
Anika and Florian head into the tunnels to follow Miss Lucas.
Jennie shows the others what she's witnessed and they plan to un-brainwash Anika. Evie still can't remember Florian, although her suspicions are starting to re-surface.
The gang waits with bated breath to see whether the blocker has worked on Anika, plotting how she can act as a double agent and steal back the items she lost. Miss Lucas shares her evil plans, which have devastating implications for the Hunters.
Anika pretends to still be bad in order to steal back the holocode device from Miss Lucas; Jennie is able to unlock it revealing an eerie message from the past and a warning for the future.
Oliver remembers it is Dottie's birthday and prepares a celebration for her, while Anika and Jasmyn head into the tunnels to find the missing piece of the Oscillator.
Oliver's loyalties are tested as Miss Lucas manipulates him and danger befalls Daniel. Jennie finds out some background on Miss Lucas and her bitter grudge against Erik.
With time against them, Anika and Jasmyn rush to Orphans Inc hoping to rescue Daniel and the Jacksons, while Jennie and Josh sneak into the Academy to try and find more evidence; Evie has her own battles at home looking after the adults.
In a final showdown in the tunnels under Hunter House, the Hunters must stop Miss Lucas before she brainwashes the whole of Amsterdam.