Thirteen-year-old Leilani Akamai and her friends, Maile and Sam, are the only official members of The Hawaiian Island Detective Club. Leilani pictures a summer full of secrets and stakeouts as she and her friends aim to solve their first real crime, a case of pineapple vandalism at Tong Plantation. It's all Leilani has to look forward to now that her younger brother, Kimo, has already ruined her summer. Thanks to him, surfing is out and she blames him for her broken arm, now in a clunky, itchy cast. To top things off, Kimo might interfere with the pineapple case and blow their entire investigation! The ugliness continues when Leilani's beloved surfboard ends up in the hands of her dreaded enemy. Can she get her board back and solve the first case of the Hawaiian Island Detective Club? This summer will be one to remember.