Some teachers just don't give an F. For example, there's Elizabeth (Cameron Diaz). She's foul-mouthed, ruthless and inappropriate. She drinks, she gets high and she can't wait to marry her meal ticket and get out of her bogus day job. When she's dumped by her fiance, she sets her plan in motion to win over a rich, handsome subsititute (Justin Timberlake).
Competing for his affections with an overly energetic colleague, Amy (Lucy Punch), Elizabeth also finds herself fighting of the advances of a sarcastic, irreverent gym teacher (Jason Segel). The consequences of her wild and outrageous schemes give her students, her co-workers and even herself and education like no other.