A double homicide in Brooklyn sets the team after a corrupt longshoreman but they soon discover something sinister has been smuggled into NY. As they race to stop the threat, Isobel enlists the help of CIA's Deputy Chief of Station Nikki Reynard.

When a single mother and her son are abducted while visiting a state park, Maggie brings in Peter Olsen to help profile their suspect. But as the team works, they make a harrowing discovery about an old case.