Astrid and Nicole have been best friends forever, but their friendship hits a bumpy road during the summer before middle school.  After Astrid’s mom takes the girls to watch Portland’s roller derby team, the Rose City Rollers, play the Oregon City Rollergirls, Astrid decides she wants to sign up for Roller Derby Summer Camp with Nicole. Astrid dreams of becoming a Rose City Roller, while Nicole has no interest what so ever in roller derby. Nicole plans to attend summer dance camp.  Astrid feels abandoned by Nicole and her feelings become even more conflicted when she finds out that her enemy, mean girl Rachel, will be spending more time with Nicole at dance camp.  Astrid deceives her mom who believes that Nicole and Astrid will be attending Roller Derby Summer Camp together, and Nicole’s mom will be picking up the girls after camp. But Astrid attends roller derby camp on her own and walks home every day by herself.  Astrid finds out that Roller Derby Summer Camp is a lot of hard work especially if you don’t know how to skate.  Astrid discovers deceiving her mom is equally as hard.