Beethoven is back -- and this time, he has a whole brood with him now that he's met his canine match, Missy, and fathered a family. The only problem is that Missy's owner, Regina, wants to sell the puppies and tear the clan apart. It's up to Beethoven and the Newton kids to save the day and keep everyone together.
Some college students manage to persuade the town's big businessman, A. J. Arno, to donate a computer to their college. When the problem- student, Dexter Riley, tries to fix the computer, he gets an electric shock and his brain turns to a computer; now he remembers everything he reads. Unfortunately, he also remembers information which was in the computer's memory, like Arno's illegal businesses..