A wave washes up an old object at the foot of a boy exploring on the beach. It's an underwater camera! Excited, the boy decides to develop the roll of film that's inside. The photos are incredible: a fish made from rope and complicated gears; a balloon fish that resembles a balloon on the sea; miniature aliens trying to tame wild seahorses; and other strange images. The last photo shows a girl holding a photo of a boy. As the images get smaller, the protagonist examines them through his magnifying glass, and then his microscope. The chain of boys goes back in time and ends with a sepia photo of a boy on the beach, waving, no photo in his hand since he's the first of them all. After photographing himself holding the photo, the boy throws the camera back into the ocean, where it will meet its next owner.