The Hip Hop Harry crew sings and dances to a song that illustrates basic geometric shapes and examples of them in everyday objects.

Mr. Snatcher and his subordinates search for the boxtrolls by hitting boxes and seeing which ones respond to the impact. A couple of boxtrolls escape capture and flee to their underground civilization.

Rachel has a fear of putting things near or in her eyes and demonstrates this fear during a doctor's appointment for an eye infection.

The Sad Man and the kids examine the properties rectangles have.

After creating five solid squares on the ground, the CyberSquad uses a vehicle to lift the squares off the ground and create a cube. The cube transforms into the Archimedes Terminal.