The video shows a close-up of red blood cells moving through a blood vessel. The blood cells are oval-shaped and are moving in a fluid motion. The background is dark, and the blood cells are illuminated, making them stand out. The video has a text overlay that reads "WHAT IS THE BIG THING IN TECH?" and "The Era of Nanomedicine". The text is white and is positioned at the bottom of the screen. The video appears to be a medical or scientific animation, possibly used for educational or informational purposes.