City bus driver Ralph Kramden (CEDRIC THE ENTERTAINER) and his upstairs best friend, sewer worker Ed Norton (MIKE EPPS), have known each other for a long time and have thus gone through a wide variety of failed entrepreneurial efforts - a.k.a. get rich quick schemes -- over the years. Yet, that doesn't deter Ralph, although it annoys his wife, Alice (GABRIELLE UNION), who works as a waitress at a diner with Ed's wife Trixie (REGINA HALL) but dreams of owning their own place some day.
She thinks she might have a shot to buy an elderly woman's home with Trixie and thus keep real estate developer William Davis (ERIC STOLTZ) from getting his hands on the property, but realizes they don't have enough for a down payment. Thus, she asks her mom (CAROL WOODS) for some financial help, much to Ralph's chagrin. Besides, he's sure one of his latest endeavors -- including purchasing an old train car that's in the subterranean sewer system, and later owning a racing greyhound -- will pay off.
The latter involves getting track owner Kirby (JON POLITO) to allow them to enter a race and then get small-time criminal Dodge (JOHN LEGUIZAMO) to train their dog. As the big race day nears and Alice is unaware of him raiding their savings account to support his latest idea, Ralph hopes he'll score big and thus climb out of his life of mediocrity.