Michael's deal with the CIA sends him to the Dominican Republic to infiltrate a terrorist organization headed by an old contact. Sam, Fiona, and Jesse try to move on with their lives, but are drawn back in when someone starts asking questions about Michael's whereabouts. Maddie tries to get custody of her grandson.

Sam and Jesse travel to the Dominican Republic to help Michael with a high-stakes trade; Fiona intervenes when a bookie tries to extort Madeline.

Michael tries to learn about Burke's underground network; Fiona and Madeline must frame a corrupt Russian bureaucrat for treason.