Favor, Affection, Malice or Ill-Will
| Episode Number | 15 |
|---|---|
| Season | 4 |
| Aired | 2017-02-22 |
| Overview | When Lindsay is tipped off about a grieving father looking to avenge his daughter's death, Olinsky goes undercover as a hitman-for-hire. With Gang Intelligence lacking enough evidence to arrest the original gang-banger in question, the team works to reinvestigate the case. Ruzek comes back after finishing his undercover assignment only to have Voight knock him down to patrol duty. |
| Runtime | 40 minutes |
| Absolute Number | 76 |
| Finale Type |