No TV, no friends, and a grandfather struggling with retirement from marine biology--Sarah's sure her stay in the Florida Keys will be the most boring summer of her life.

That is, until she begins to take notice of the unusual-looking fish that visits her grandparents' dock every day. When Sarah discovers she's befriended a baby lemon shark, her fascination with sharks fakes roof. Before long, Sarah and her grandfather are inseparable as they spend hours tracking, observing, and swimming with sharks.

The Florida summer heats up quickly with heart-pounding shark encounters and the daring pursuit of two shark-fin poachers. This is a shark-filled summer Sarah and her grandfather won't soon forget.