In the video, a group of people are seen building a structure using cardboard boxes. The structure appears to be a large square box, and the people are working together to assemble it. The boxes are brown and have the word "large" printed on them. The people are wearing casual clothing and are using tape to hold the boxes together. The structure is being built in a grassy area, and there are trees and a fence visible in the background. The people are moving around the structure, placing boxes and securing them with tape. The video captures the process of building the structure from start to finish.