The “story” is about leukocyte extravasation, or the movement of a white blood cell out of the bloodstream and into infected tissue. A fairly decent background in science will be necessary for anyone to get a good grasp of what’s going on in the video, but even the common person will be impressed or even amazed by how intricate our bodies are, down to the very molecules. (I would recommend the 3-minute version if you find yourself short on science background.)

We live in an amazing world, we are amazing worlds, and, in light of this video, each one of our cells is an amazing world. Who knows, molecules and atoms could also be worlds of their own, far more complex than we could ever imagine. Nature works in astounding ways.

3-minute version

The only thing scientists, partially including myself, might have against this is that the animations of the molecular movements are too “perfect.” In reality, molecules wiggle against each other randomly (Brownian motion) until these things happen naturally – more of a chaos really. Of course, if they were to show that in the video, it would probably greatly confuse the viewer, so I can see why they decided against it.

If you’re skeptical about the kinesin motor “walking” protein (and you have every right to be), there’s also a video that breaks down the process of how it “walks,” courtesy of the Milligan lab:

8-minute version