A partially liquefied body is found in a biohazard waste bag, mixed with veterinary waste, and possibly infected with some virulent new pathogen. The CDC puts the Jeffersonian on lockdown as the CDC try to figure out if there's a danger of a deadly viral outbreak.
A charred corpse is found in a metal shed that was set aflame. The shed – actually a fortified bunker – was filled with ammo, and the victim is wearing a fire-resistant vest. However, the vest wasn't bulletproof – the victim was shot before she was engulfed in flames.