The team welcomes a new member, Special Agent Tiffany Wallace, as they search for killers who orchestrated a mass shooting at a media company, and OA’s personal connection with the case threatens to cloud his judgement.

The team races to stop an active serial killer after three women are found weighted down at the bottom of a lake, and Jubal looks into an old closed case after there are multiple similarities to the recent victims.

A shooting at a quinceañera leaves two dead, but the team believes they may not have been the intended targets. Also, Maggie is trapped between a rock and a hard place as the team decides the best plan of action for using a witness to take down the suspect.

As the team searches for a young girl who was kidnapped from a cabin during a family vacation, they discover that the abduction may be tied to a skeleton in her family's closet. Also, Maggie questions her relationship with Nestor when she learns he hasn't been completely honest with her.

The team must infiltrate a drug trafficking gang after the robbery of a chemical plant leaves two customs agents dead. Also, Nestor offers his help on the case, giving Maggie new insight into his character.