Paddington, now happily settled with the Brown family and a popular member of the local community, picks up a series of odd jobs to buy the perfect present for his Aunt Lucy's 100th birthday, only for the gift to be stolen.
A veteran tracker with the Fish and Wildlife Service helps to investigate the murder of a young Native American woman, and uses the case as a means of seeking redemption for an earlier act of irresponsibility which ended in tragedy.
When a train is stranded and a man is murdered, the crime is investigated by a famous detective. He discovers that many of the passengers knew the victim from years before in connection with the kidnapping of a three year old heiress. When the murder victim's true identity is revealed as the kidnapper/killer, suspicion falls on 13 travelers who are linked to the original case through their ties to the child's family.