Following Electro's attack on Dexter Bennett and the DB, the office of the Mayor is surrounded by crises. Glory Grant calls Peter in to help deal with one of them. The evidence from a series of murders has gone missing from evidence lockers, giving every defendant in the city grounds to argue that evidence against them has been corrupted.

Complicating matters, the forensic tech working with the evidence was Peter's friend Carlie. But a few grains of sand in the evidence locker give Pete a clue as to who might be behind the theft of the evidence as well as the murders.