Ashley is a bad schoolgirl who is being supervised in detention by her teacher, Tina, who thinks she's a troublemaker and hates her. Ashley needs to pee but rather than let her go to the bathroom, Tina teases her desperation and makes her hold it. She even pees into a water bottle in front of her to make her even more desperate. Finally, Ashley can't hold it anymore and has no choice but to pull down her panties and pee right there on the floor. Tina deviously snaps camera pics of her peeing on the floor to use as evidence to get her expelled once and for all.