Drugs contaminated with a deadly bacteria have hit hit the street.
After a messy drug arrest, Andy and Marlo are quarantined together. Meanwhile, 15 Division springs into emergency response mode in order to get the contaminated drugs off the streets before a deadly outbreak sweeps through the city.
When a beautiful woman staggers into the street and collapses of an apparent overdose, Andy and Marlo chase down her dealer, tackling him in a cloud of powdered heroin. But the arrest sends 15 Division into emergency response mode when the drugs prove to be laced with deadly bacteria. Led by Swarek, the troops scramble to get the contaminated heroin off the streets before a deadly outbreak sweeps through the city.
During a routine traffic stop, Gail and Andy find a boy bound and gagged.
Andy has her sights set on a much-needed long weekend. But when a routine highway check leads to the discovery of a teenage boy in the trunk of a car, Andy and Gail must convince him that no heartache lasts forever... in order to save him from making a tragic mistake.
After the stress of the last shift Andy just wants to make it through shift and head out for a much-needed long weekend with her fellow rookies. Andy and Gail set out to work a routine highway spot check being run by 15 Division in preparation for the holiday weekend. But when the highway check leads to the discovery of a teenage boy, bound and gagged in the trunk of a car, Andy and Gail are plunged into a messy tale of young love gone very wrong.
Beth and Simon spend the day with their estranged father. Abby reconnects with Gray after her trip to Montreal. Connor confronts Charlotte about Scienetics. Raquel suffers a close call behind the bar. Sabrina moves in with Nick. Kal lays down something completely new in the studio.
Kal is beginning to feel good again when a phone call rocks his world. Raquel continues to do whatever it takes to make money to finance her film.
Beth and Simon spend the day with their estranged father. Abby reconnects with Gray. Sabrina moves in with Nick.
When a gifted psychic -- or, at the very least, a gifted conman -- enters 15 Division to help find the missing witness in an organized-crime case, the officers are forced to come face-to-face with some of the hidden truths about themselves and the people they work with.
Nick and Oliver embarrass 15 Division when they're surprised by a pair of gunmen and end up losing the key witness in an upcoming mob trial. With no leads, all hope seems lost for the police until a man comes in off the street with vital information about their witness' whereabouts. The only problem: the man claims to be a Psychic who simply had a vision of the missing witness. However, when the man's information checks out, the officers are forced to take it on faith and start their search.