Episode 22 of "ReGenesis"
s02e09 Gene in a Bottle
Title: Gene in a Bottle
Original Air Date: 05/14/2006
Plot Outline:
NorBAC's investigation into a cluster of suicides occurring in the southern United States uncovers an unnatural enzyme in the brains of the victims. They are receiving something from their environment, and it's causing sudden and severe depression, but where is the enzyme coming from? Meanwhile, the wife of a longtime scientist-friend of David who was killed in a car accident asks David to decipher the secret project her husband had been working on. With the help of Bob and Carlos, David discovers that his friend was genetically engineering mice. They soon deduce that he had discovered the gene that causes homosexuality and had initiated a patent for a drug that would suppress the gene! Bob scrambles to neutralize the Asian Brown Cloud before it dumps a deadly shower of sulfuric acid on Mexico City ... and Owen shows up at David's apartment stoned on crystal meth but David decides to give him one more chance to clean up his act.