At the beginning of the first film, Beethoven is a puppy who is stolen from a pet shop by two thieves named Harvey and Vernon, who work for the nefarious Dr Varnick, the film's main antagonist. With the help of a Jack Russell Terrier (later named Buddy by the Newtons), Beethoven manages to escape from Harvey and Vernon's van, but is then left to fend for himself after the terrier runs off, chased by Vernon. The next morning Beethoven wanders into the Newton household and his story unfolds from there.
In Beethoven's 2nd, Beethoven meets Missy, a female St. Bernard. They fall in love, and eventually have 4 puppies together. They were named Tchaikovsky, Chubby, Dolly, and Mo.
Family and friendsEdit
Even after Beethoven grows into an adult dog, he is shown to still be friends with the Jack Russell Terrier who helped him escape from Vernon and Harvey as a puppy. He brings him food, as he is apparently living on the street and helping a hobo gather tin cans for unexplained reasons. When Vernon grabs the terrier by the scruff of his neck during the film's climax, Beethoven breaks out of his cage and chases Vernon, causing him to drop the terrier, showing that he is protective of his old friend.
In Beethoven's 2nd, Beethoven meets Missy and falls in love with her. They "date" at the cinema with popcorn. Ted and Emily Newton soon notice that Beethoven has been sneaking out. They follow him the next time he goes out and he leads them to Missy and their 4 puppies in the storeroom of Regina's apartment block, where Missy has, according to the janitor, apparently been sleeping.