Following a storm, the intrepid Miss Moody, accompanied by her cat Captain Kidd, finds an intriguing bottle washed up on the beach, and must think quickly to save the day when she opens it to unleash a bad spirit.
At the end of the summer, 14-year-old Owen refuses to leave the beach house which has been his family's summer home for 10 years and which is scheduled for demolition.
Spending two weeks at the New Jersey shore as mother's helpers, Mary Anne objects when Stacey neglects her babysitting duties after falling in love with Scott the lifeguard.