The video begins with a simple illustration of a red kidney against a pink background. As the video progresses, the kidney is shown in various stages of cross-section, revealing the intricate details of its internal structure. The kidney is depicted in shades of red and pink, with blue arteries and veins. The video zooms in on specific parts of the kidney, such as the renal corpuscles and the renal tubules, and labels them with white text. The video ends with a complete view of the kidney's cross-section, with all internal structures clearly visible.