ReGenesis

A deadly virus is headed straight for the city; teenage daughter.

Norbac finds "patient zero," and the hard part is that she is a baby.

Lilith and Mick break into his father's office to find evidence for David that he has been cloned.

NorBAC investigates an outbreak of prion disease in humans with victims across North America.

An agribusiness may be selling infected chickens; David tries to convince Owen to stop gene therapy.

An experimental treatment is being used on children with leukemia.

Carlos wants to help a friend dying of AIDS to participate in cutting-edge research.

Civilians return from Iraq exhibiting a range of mysterious illnesses.

David investigates a water purification system that may have malfunctioned, leading to illness.

Bob tries to find a cure for his dog; Jill confesses to David.

David and Jill make a trip to Colorado; David is in a coma after walking into the path of a car.

Jill goes to Canada to see if the Spanish flu body is still in the ground.