Big cuddly St. Bernard is back. This time his owner is an animal trainer and a single dad, Eddie (Jonathan Silverman) after his son Billy (Moises Arias) begs to adopt this gigantic and slobbery dog. Beethoven catches the attention of a movie director (Eddie Griffin) and a producer (Rhea Perlman) when he chases a little iguana. Beethoven becomes a movie star of the movie called “Beethoven”. But of course there is someone who does not like Beethoven’s new success and fame.