Brennan falls in love with a girl named Hayley, while Beethoven literally destroys the obstacle course in one day.

To top it all off, Beethoven hits the army sergeant in the groin with a leash causing him to kneel over in pain.

Meanwhile, the rich Sedgewick family owns a pampered and well-behaved St. Bernard that looks exactly like Beethoven, named Michelangelo.

Michelangelo and young Madison Sedgewick are friends, but her busy parents, Reginald and Martha, are always neglecting her.

The real Beethoven is mistaken for Michelangelo, and grabbed by Jonathan Simmons, the Sedgewick family's butler and taken to their mansion.

Sara is surprised when Michelangelo wipes his feet on the welcome mat and folds the napkins with his teeth at dinner.