Astrid can't wait for the school year to start so she can put her Astronomically Grand Plan into action! She and her best friend, Hallie, are going to be in their first year of Shooting Stars, a club dedicated to all things space. Astrid's big sister has told her all about it, and this year, there is a big, wonderful prize: a trip to a real-life space camp!

But Astrid's Grand Plan isn't off to a great start: it turns out Hallie is more interested in the art club, Petite Picassos! And Astrid isn't sure that her goal of exploring space will happen the same way without her BFF by her side. Can Astrid figure out a way to complete her mission?