Coming Down Hard: When two college students jump to their deaths, the detectives discover both students were enrolled in the trial of a new anti-depressant run by a large drug manufacturer. (S15 Ep4)
Gunplay: Detectives Fontana and Green are on the trail of two suspects who murdered police officers during an illegal weapons 'buy-and-bust' operation. (S15 Ep5)
Blaze: A rock band's illegal pyrotechnics leads to the deaths of 23 concertgoers in a blaze that traces back to a needy teenager, desperate for love. (S14 Ep5)
Paradigm: New detective Joe Fontana transfers to the 27th precinct but is uneasy with his new partner, Detective Green, when they investigate the murder of an ex-soldier. (S15 Ep1)