Abby and Sarah are as different as two sisters can be, but they get along well—that is, until they join the same school basketball team. Older sister Abby is bound and determined that their team will win this season. But outgoing and carefree Sarah seems to treat practices as a chance to goof off with friends, when she bothers to show up at all. As the tension on the team heats up, so does Abby's intensity, until she's not only treating her sister poorly but also her other teammates—and coach.