The only link to a missing fortune lies with the thief's sixteen year old daughter, who is supposed to meet him on the way out of the country. Shannon takes charge of her as they head to a dock in California, but he's followed by two trigger happy hoods, who kidnap the girl.
A seemingly quiet old gentleman has been killing rich old ladies he's conned into marrying him, often on their honeymoon night. A battered tea pot leads one victim's son determined to prove it, and Shannon investigates.
One deep sea fisherman's boat has been firebombed and he suspects a rival Captain. Their feud has been standing for many years, but is intensified when the first man's son has joined his enemy's crew after he fell for the second man's daughter.
A recovering drug addict has suddenly vanished from his room at a rehabilitation house, and his confused girl friend enlists Shannon and the other investigators to find him. Soon it's revealed he was only posing as an addict,and had another identity.