Ten-year-old Jennie Levinsky has a secret--and only her best friend, Beth, knows about it. Jennie can "hear" what her new neighbor's sheepdog, Sam, is thinking!.
Best friends Jennie and Beth are all set to enjoy their summer vacation with Sam, the sheepdog. But how could they know that the house Jennie's family has rented was built long ago by a bloodthirsty pirate!.
Sam the dog detective is anxious to sniff out another mystery when she sees strange lights in a nearby field and jumps to the conclusion that they must be alien ships.