Set Facts
- This set comes with minifigures of Mateo and Cooper.
Regional Retail Prices (LEGO.com/Store)
About DREAMZzz Trials of the Dream Chasers

The LEGO DREAMZzz theme which was released in the summer of 2023 is based on the LEGO DREAMZzz TV show. The LEGO DREAMZzz series follows the adventures of school friends, Mateo, Izzie, Cooper, Logan and Zoey, as they join a secret agency and learn to use the power of imagination to journey into the Dream World.
Trials of the Dream Chasers curently consists of 12 sets, all released this year.
Read more
Kids aged 7+ battle a fearsome nightmare figure in the LEGO® DREAMZzz™ Grimkeeper the Cage Monster (71455) building set. Based on the action that takes place on the DREAMZzz TV show, the set lets kids build the villainous Grimkeeper and then help Mateo and Z-Blob rescue their friend Cooper from his evil clutches before he takes him to the Nightmare King.
1 set, 2 adventures
To rescue Cooper from the Grimkeeper, kids can choose between 2 building options. They can build Z-Blob as a mini-plane to confront the villain, or as a hoverbike to pursue and intercept the Grimkeeper and free Cooper when the moment’s right. This lets kids choose their own path and enjoy double the playtime.
Bringing the fun to life
Minifigures of Mateo and Cooper bring the action to life. Their accessories include a belt, pencil spear and hourglass, which are important to their characters in the TV show.
Bring a villain to life – Kids can enjoy imaginative play with the LEGO® DREAMZzz™ Grimkeeper the...
Description provided by LEGO©