Kelly Reynolds is used to being No. 1 at American Gold Gymnasts--until Maya Resnikov moves to town. But Maya isn't just Kelly's new competition at the gym, she's Kelly's new stepsister ! Right away, sparks fly! Each time Kelly tries to be friendly at home and at school, Maya gives her the cold shoulder. It's no better at the gym--especially after Kelly announces that she hopes to do a back somi beam dismount at the upcoming Atlanta Strawberry Festival Gymnastics Competition. Maya just happens to be planning the same move. Now it's an all-out war! But unless they start to get along, their team doesn't stand a chance of winning the group competition. Maybe that's exactly what somebody wants...