Kidnapped

The son of a self-made millionaire vanishes on his way to school, a rebel investigator must retrieve the victim.

The Cain family receives a parcel that suggests more of the children may be in danger.

The Cain family hosts the annual charity ball to prevent the public from discovering that Leopold has been kidnapped.

Knapp goes under cover to find the origin of the specialized bullet that struck Virgil.

Knapp and King investigate the remains of a burned-down textiles building, where the room was carefully rigged to detonate on command.

Ellie Cain's father negotiates to get his grandson back.