Winner takes all... Lois Waller has always been too shy about being overweight to join in school activities. When the PTA decides to have a bike-a-thon, Lois finds the courage to take part. It's a chance for her to win a brand-new mountain bike—and it's the perfect opportunity to put snobby Bruce Patman in his place. Everyone at Sweet Valley Middle School knows how much Bruce bullies Lois. Although Jessica Wakefield thinks that anything Bruce does is perfect, her twin sister Elizabeth disagrees and is on Lois's side. Elizabeth thinks that Lois has a good shot at winning. But she doesn't know how far Bruce Patman will go to see Lois lose!