It's not all sugar and spice for the girls of Flowerpot Cabin after they leave summer camp. Grace learns she isn't good at everything when she gets volunteered to dogsit, Emma's mom has a hard time when her beloved grandmother dies, Olivia's brother makes a big announcement that starts a family feud, and Lucy isn't sure how she feels when her dad pops back into her life. Meanwhile, beloved counselor Hannah continues to deal with the fallout from a summer romance.

But no matter what tough stuff comes their way, there are two things the members of the Secret Cookie Club can count on: friendship and cookies.