Clara and Dmitri, two bear cubs, find four metallic square sheets floating in the sea off Skansen Zoo, Stockholm. Together, they form a large square: a minimalist sculpture floating on the sea rather than lying on a gallery floor. The metals look like copper, bronze, gold, and silver but are not, since they float.
On each of the four sheets, they find requests to return them to their owners. Returning the first one is fun but returning the others involves great danger. They need more than a little help from their friends and vice-versa!