Max tracks a possible suspect while the other children search the house for new clues; Anika takes on an unlikely mission.
- Stony Blyden as Max Hunter
- MaeMae Renfrow as Tess Hunter
- Daan Creyghton as Sal Hunter
- Thomas Jansen as Daniel Hunter
- Kyra Isako Smith as Anika Hunter
- Yootha Wong-Loi-Sing as Simone
- Ronald Top as Erik Hunter
- Tooske Ragas as Kate Hunter
- Zoë Harding as Sophie Saganash (not credited)
- Cees Geel as Mr. Bruhl
- Liora Kats as Janine Bruhl
- Amedeo Feingold as Julius Bruhl
- Dawn Mastin as Gertrude
- It shows Mr. Bruhl's house as Anika goes through it to find out exactly what he wants with the Hunter house. As well as showing his connection with Saganash(person). It also features an appearance from the Hunter kids' parents, Kate and Eric. They travel to Indonesia to the Java Sea to retrieve the red diamond, which they do. In this episode, Saganash attacks Gertrude, one of the Relatives, a group of people who want to protect the Hunter fortune, and he steals the blue diamond off her after the Hunters gave Saganash a fake one made by the Magpie instead of the real blue diamond. It features the first appearance of Sophie, Saganash's daughter, who is trapped after she is caught trying to steal something from the Hunter house after she broke in using the tunnels.
- Daniel reinvented himself.
- Erik, Kate and the other Hunters now knows about the connections of Mr. Bruhl to Saganash.
- Max spied Mr. Bruhl with his skateboard.
- Anika pictured an architectural blueprint that shows an image where Bruhl wants to buy the Hunters' house.
| To view the Undercover gallery, click here.
|Hunter Street Episodes|
|The New Hunter • Saganash • The Secret Room • Principal • Rinus • The Key • The Blue Diamond • MGP • Aunt Hedwig & Uncle Eugene • Contact • The Relatives • The Red Diamond • Cassandra's Map • Anika's Birthday • The Maze • Undercover • Sophie • Bruhl • Almost Back • The Deed|
|The Package • The Arrest • Max • Evie • The Museum • The New Friend • The Family Tree • Payback • The Plan • The Reverse Heist • The Mole • The Green Mask • Hacker Hideout • The Super Secret Room • The Crown • Hide and Seek • The Houseboat • Spy • The Ritual • Hunters Forever|