Dunc Culpepper and his accident-prone friend, Amos, are up to their old sleuthing habits once again. This time they're after a band of doll thieves! When a doll that once belonged to Charles Dickens's daughter is stolen from an exhibition at the local mall, the two boys put on their detective gear and do some serious snooping. Will a vicious watchdog stop them from retrieving the valuable missing doll?