During her third year at Camp Lakeview, resident tomboy Priya finds that being best friends with a boy has some drawbacks now that they are both growing up.

Eleven-year-old Jenna, contending with the separation of her parents and the unwanted presence of her twin brother and older sister at Camp Lakeview, is determined to make a name for herself by pulling the ultimate prank.

During her second summer at camp, Grace tries to balance her enthusiasm for fun activities, including trying out for a play, with her promise to her parents to read two books.

Having broken her leg practicing for the annual Color Wars competition, Jenna's misery is compounded when she is falsely accused of pulling a series of pranks that could get her sent home, and so, with little to lose, she begins planning her revenge.

The girls from Camp Lakeview keep in touch through a blog as Priya deals with a science fair project, Alyssa fights for the chance to be featured in an arts magazine, Val vies for a spot in a dance recital, and a Tori attracts the attention of the son of one of her father's clients.

When Lainie invites her to spend time with the popular sixth division girls, Natalie forgets her Color War obligations and her promise to help best friend Tori to captain the fifth division blue team, but when she is noticed by a boy Lainie has a crush on, Nat has some apologies to make.

With rivalries and cliques to blame for the drop in attendance at Camp Lakeview, Bunk 5A is on official warning but after a horror story about a creepy local who tortures campers, Chelsea's disappearance frightens everyone into joining forces.

Relates the adventures and misadventures of a group of pre-teen girls at a summer camp in Pennsylvania.