Mayko Nguyen

Andy and Swarek track down a police car stolen by students as a prank. Also available on Xfinity, Amazon Instant Video and VUDU

Abby (Rachael Carpani) and Lina (Marisa Ramirez) investigate a complicated case involving the apparent suicide of a Chicago Police Department officer, a stolen gun and sexual abuse allegations against the department chaplain. Meanwhile, Mackie (Mayko Nguyen) and Abby's brothers plan a surprise birthday party for Abby and battle over whether to invite Danny or Brody. Also available on iTunes and VUDU

Andy tries to uncover what happened to Swarek. Also available on Amazon Instant Video and VUDU

Andy and Swarek come across a car accident while pursuing a kidnapper. Also available on Amazon Instant Video, iTunes and VUDU

Dov and Gail work together under Swarek's expert tutelage in a stakeout operation to stop an Asian gang from killing a snitch. Meanwhile, it's Mounted Unit training day - Andy and Chris join the rookies from 27 Division in a competitive equine training event that gets Andy McNally back in the saddle, personally and professionally. Also available on iTunes and VUDU

After a seemingly drunken man collapses in the barn, 15 Division is put under quarantine. Andy and Swarek work together to find the accomplice of a dyed blue bank robber. Gail Peck worries about her exposure to the sick man, while Chris goes undercover in a holding cell. And Dov's first date with a sexy bomb tech ends in a thrilling takedown. Also available on iTunes and VUDU

Using a local car dealership, 15 Division runs a sting operation to crack down on suspects with outstanding warrants. One of the criminals they capture tries to bargain for a lighter sentence, by giving information that puts Dov and Chris in peril at a meth house. The discovery of a homeless suspect leads Traci and Andy to do the right thing. And when Luke and Jo work together on a surveillance job, they end up in each other's arms. Also available on iTunes and VUDU

NorBAC searches for the source of a resistant strain of c. difficile; Bob proves to be an asset to the team.

Carlos and David help a scientist look into a claim that an exiled Cuban is a victim of bioterrorism.