Things get off to a hot start when a prisoner under interrogation tries to force his way out of the police station. When pepper spray doesn't stop him, he is tasered but he bursts into flame. The autopsy also reveals that he has green blood. When others are brought into to the morgue with green blood, the CSI team is able to trace a common thread running through all of the victims and a homemade drug all of them were using.
Did You Know?
When Nick is spraying the dummy with Mace as the Mythbusters watch, Nick should be coughing from inhaling the vapors. Mace sprayed in a closed space such as a lab will make people in the area of the spray start to cough and gag but Nick is not doing anything as he sprays the dummy and yet he's not wearing a mask to prevent him from breathing the vapors. See more
Once is happenstance. Twice is coincidence. Three times is enemy action.