 While performing an autopsy on a man who was hit by a bus, Quincy and Sam find what looks like a pacemaker inside of him. However, when they remove the object they find out that it actually was a container for diamonds that he was smuggling into the country. Quincy is then "drafted" by a pair of government agents to act as a replacement courier to try to catch the mob boss who was to receive the gems. However, Quincy soon becomes a target of a hit man who poisons him and now its a race against time to find the hit man and get an antidote to save Quincy.