The FBI uncovers some evidence, possibly linking a group of people to human cloning. The bureau's Special Science Advisor is called in to investigate.

Dr. Hood is called to Georgia, when several 11 year old boys mysteriously die of heart attacks.

Dr. Jacob Hood must figure out why severely autistic teenagers are disappearing across the country, only to reappear a month later exhibiting symptoms of savant syndrome.

When an aggressive and deadly virus infects a demolition site in Pittsburgh, Dr. Hood is called in to contain a potentially lethal outbreak.

When a woman's body is discovered on the beach on the hottest day of the year, frozen solid with no signs of thawing despite the blistering heat, Dr. Jacob Hood is called in to investigate.

A drug therapy program designed to turn chimps into violent soldiers goes so horribly awry that the research department calls Hood in to help.

As Dr. Hood investigate, he comes across a medical cover-up where students are dying due to the bends, but there is no deep water in Oklahoma for this to occur.

Dr. Jacob Hood must find the cure and the cause of a deadly flesh eating bacteria when a group of spring break students become mysteriously exposed.

An epidemic of sudden, violent outbursts by law-abiding citizens draws Dr. Jacob Hood to a quiet Texas community to investigate - but he soon succumbs to the same erratic behavior.

After seeing a national news report that a boy's kidney tumor miraculously disappeared after the child drank from a natural spring in Montana, Dr. Jacob Hood rushes to the scene to debunk what he believes to be a fraudulent miracle cure.

Hood is called in to investigate when a millionaire dies and the autopsy reveals two fully developed hearts in the deceased man.

A string of stem cell thefts indicate an elaborate cloning operation that lead Dr. Hood to suspect that his old nemesis, Gepetto, has returned.

Hood investigates after a healthy helicopter pilot who flies for a local TV station goes blind during a live traffic report, which results in a deadly crash.

Hood investigates when 30 people are struck by lightning during a 10-minute thunderstorm.

Doctor Hood is called in to determine the cause of a poison cluster, which is killing people in Philadelphia.

Four homicides during fashion week due to sudden fits of rage lead to Doctor Hood being asked to investigate.

A high level FBI agent is accused of stealing a woman's child and Dr. Hood is the only one who believes it.