Adopted by the Newton household's three children, an adorable little St. Bernard puppy grows into 185 pounds of disaster-prone trouble; There's trouble in the heir when Beethoven becomes the proud father of four pups, each one an adorable but mischievous bundle of joy; When two bumbling thieves threaten the safety of his family on vacation, Beethoven sets out to put a bit on the bad guys; It's a case of double trouble when Beethoven is mistaken for...