An off-screen narrator introduces us to a series of images, asking if we can tell what each is. They are photographs of small objects, blown up to many times their actual size: the wheel and other moving parts of a woman’s wristwatch; a cat’s tongue; mosquito eggs, larvae, and an adult insect; a praying mantis; a fly and its eyes; each end of a caterpillar; a newly-hatched hummingbird; and, a lizard’s eye. Sometimes we just see the object up close; in the case of the mosquito, we watch it grow from egg to feeding adult. There’s time-lapse photography and an explanation of why it’s hard to swat a fly.