The movie tells the story of Gary Houseman, an overenthusiastic high school janitor who steps-up to lead the school's loser tennis team and leads them to the Nebraska State Championships when the acting coach drops dead.
A tad too obvious for my liking but then it's a Sean William Scott movie -- so obviously it's obvious. But as a tennis redemption movie (not too many of them around) it stands out for a sense of gruff fun.
...there eventually does reach a point at which Scott's performance, ingratiating as it is, simply proves unable to compensate for the film's myriad of deficiencies.