The team finds themselves in a high-speed pursuit after biological parents reclaim their baby from the adoptive family, and Parke will end up bargaining not only for the baby's life, but the desperate father's as well.
A bullied teenager goes on a rampage at his high school, sending the team racing to ensure the safety of the students and hopefully talk him down, but a family member compromises the rescue plan as grief causes him to lose control.
Ed's youth neighborhood protégé Anton Brand's fourth parole hearing fails after another testimony from the daughter of shopkeeper Amiri whom he killed during his only hold-up as a teenager. Shortly after, Nothing To Lose (NTL) prison gang leader Sloan Keller starts a row which looks like an escape attempt but mainly aims to eliminate the rival, still leading Blood gang. Anton gets hold of Amiri's wife and daughter.
Lawyer Adam Westfall is held at gunpoint by Donald Mitchell, who won the custody case for Liam and Alice against his wife, Westfall's client Helen. Donald correctly assumed Helen is helped by the lawyer's assistant to abduct their children to Ireland. The team arrests Donald and chases Helen, who has taken the kids with the help of her boy-friend Jason.
The SRU are in search of a man who stopped two local drug dealers from vandalizing a local restaurant only to take their gun and hunt down them and other local drug dealers who he believes burnt down his family store and are the reason for his younger brothers death from an overdose.
Sam Braddock's negotiator skills are put to the test when he forms a special connection to a sniper holed up in an arena that's scheduled for demolition and ends up questioning his role as a member of the SRU.