The movie has an introduction explaining Heyerdahl's theory, then shows diagrams and images explaining the building of the raft and its launch from Peru. Thereafter it is film of the crew on board, shot by themselves, with commentary written by Heyerdahl and translated. The whole film is black and white, shot on a single 16mm camera.
A small amount of colour footage of Kon-Tiki does exist[which?][where?].