Leonard finds himself facing a murder charge after pulling a job Alexander turned down. The elderly Blacke had accepted to test a new security system at a jeweler's and ended up accused of murder when a corpse turned up inside a vault. This episode involves a planned jewel heist, father-son rivalry and bungling police work. Alex is coerced into solving the mystery of what happened to Czar Nicholas' diamonds and who killed the jeweler.

Leonard is in Florida to raise money for a brother and sister who think they know the whereabouts of a sunken treasure.

While working as a consultant for a movie, Alex gets an added responsibility when the producer is murdered in an editing room.