Olive had known for a long time that her grandfather was unusual. He had a cupboard full of old trinkets, and in it - a pocket watch that never went on time, but always flashed in the light in all the colours of the rainbow. One rainy afternoon, Olive and her younger brother Maks were searching through their grandfather's cabinet for something interesting. Maks was the first to spot a watch on a shelf where it wasn't usually found. It was lying open and a soft light pulsed inside. - Look, Olive! He's shining! - Maks reached out his hand, but as soon as he touched the watch, the whole cabinet trembled and the room around them began to whirl. Olive screamed, squeezing her brother's hand. They both felt as if someone had moved them through a velvet curtain. When the whirlpool stopped, they were standing in the middle of a huge, colourful valley. However, something was wrong. Fragments of a rainbow were levitating above the trees, but some of the colours were disappearing into the air, as if someone had stolen them. Suddenly, a green-haired rabbit in a scarf jumped out from behind a corner and stopped right in front of Olive and Max. - Help! - he called out. - Someone has stolen some of the colours of our valley! The luminous path has gone out, and you won't get home without it! The children looked at each other, trying to understand if this was all really happening. There was a strange metallic sound in the distance, and the ground beneath their feet trembled gently. A mysterious figure with a shiny silver cloak was emerging from the mist....