Children join the Minecraft hero Alex on a mission to remove ancient rubble from a section of the Nezerskaya Fortress bridge in the Crimson Forest. As the rubble disappears, lava automatically cascades down, and Minecraft figures - a stone sword-wielding skeleton and a rod-spinning ifrit - block Alex's path.
The kids use the iconic diamond sword to fight the mobs and then escape on another Minecraft figure, a strider that has movable legs and a saddle. Minecraft players know that they have to grab hold of the distorted mushroom to be able to control the strider.
Bringing additional digital capabilities, the LEGO Builder app lets kids zoom in and rotate models in 3D with their device.