Based on the wildly successful books of the same name the series follows the life and adventures of the famous mouse Geronimo Stilton. Geronimo is an intellectual mild-mannered mouse who despite wanting nothing better than to live a quiet life, keeps managing to get involved in far-away, marvelously humorous adventures with his younger sister Thea Stilton, cousin Trap Stilton, and favorite nephew, twelve-year-old Benjamin Stilton.