The adventurous Diplodocus dreams of life gaining a bit of colour. The family swamp is grey and boring. When the peaceful life is interrupted by the appearance of a mysterious fog, Diplodocus sets off on an unforgettable journey to find his lost family and restore the lost order. He visits magical places, meets strange creatures and meets extraordinary inhabitants of the strangest worlds. Together with the clumsy wizard Hocus Pocus, the crazy Professor Nerwosolek and the clever pilot Entomologia, they will discover a great secret. Together they will see that their reality is actually... a page in a comic book by a cartoonist Tadek, who is in a creative crisis. They will try to save Diplodocus' parents and solve the mystery of the insidious fog.