In the video, a person is seen assembling a Lego set. The person is placing Lego characters into the set, one by one. The Lego characters are of different colors and designs, and they are being placed in various positions within the set. The set itself appears to be a building or structure, with different levels and sections. The person's hands are visible as they carefully place each character into the set. The video is shot from a close-up angle, allowing viewers to see the details of the Lego characters and the set.