Everyone's favorite St. Bernard returns in this family film about man's best friend. Richard Newton, his wife Beth and kids Brennan and Sara shove off in their camper for a road trip. Along the way, they gain a new passenger: slobbery Beethoven. The Newtons plan to return Beethoven to his owner -- but not before he turns hero when a pair of thieves enter the picture.

In a world gone soft and flabby, the greatest threat to humanity’s survival isn’t global warming, but a wobble in the earth’s rotation caused by the excess weight America has gained in the form of obesity and useless consumer junk. Now, audacious lone crusader Grant Fitzgerald (Scott A. Evans) runs for president of the United States to expose the truth about this menace.

The family is pleasantly surprised and puzzled when Beethoven suddenly becomes obedient. Turns out it's a prince and the pauper scenario, with the real Beethoven now living with a pompous rich family.

Some say that to be the leader of a country is one of the loneliest jobs in the world. But being the child of a world leader can be doubly so. Constantly surrounded by security officers, restricted in movements and having almost every waking moment carefully monitored makes normalcy an impossibility. No one knows this better than young Luke Davenport, the son of U.S. President Davenport. He vents his loneliness, frustration and feelings of isolation from family and friends by being a brat to his private Secret Service agent. When the agent snaps from the strain in front of the First Lady, a new agent is assigned to Luke. He turns out to be the enormous Sam Simms, a bit of a rogue who managed to rise through the ranks by sheer determination rather than strict adherence to Secret-Service protocol. At first, Luke tries all his old tricks upon Sam. But instead of getting angry, Sam seems to actually understand.