An affluent executive at an armored vest company is gunned down as he arrives at his daughter's $2 million sweet 16 party and Detectives Green and Cassady quickly tie the incident to a U.S. soldier who was killed in Iraq when his vest failed. In court, the defense argues the shooter was mentally incompetent but A.D.A.s McCoy and Rubirosa press on refusing to cut a deal. Meanwhile, further investigating leads the detectives to a large supply of faulty vests that weren't destroyed but resold to a charity.