Pediatrician Lorrie Ryan is looking forward to taking her young hemophiliac nephew, Davey, camping while his parents fly to Florida. The family has been under FBI protection because Davey's father is testifying for the prosecution in a case involving a murdered student and a drug syndicate. Lorrie is glad to spend time alone with the boy because her sister seems more mothering of her professor husband than her son, and Davey is glad to be with Aunt Lorrie because she lets him be himself rather than try to conform to his mother's rigid standards. But their idyll is brief: Davey disappears. Lorrie calls the police and FBI agent Stuart Sanders, and she and Stuart unite in their search for the missing boy, who needs his daily injections.