A one-shot canonical sequel to Geronimo Stilton-INTERPOL-The Christmas Chase. The squadron of 12 smart autonomous Koenigsegg supercars, dubbed as The Ghosts, are given a leave by their owner during a winter day in the beginning of February. As they were roaming free in the wet streets and roads of New Mouse City while their owner goes to a survival training with The Rodent's Gazette crew, the leader of The Ghosts accidentally bumps into a scene of a crime in progress. Starting a Code 3 pursuit chase with a stolen sports car, they're forced to be back on duty. Will they be able to catch the crook in the high-octane chase?