Barry Madden escapes from prison to help re-capture his son Tyler who is the key to accessing the embezzled funds from Barry's lucrative and illegal ponzi scheme. As Mother's hit squad close in on them, Veronica and Roxie have no choice but to team up with Agent Barnes to keep Tyler safe.

After Tyler is captured by crime boss Mother, Veronica, Roxie, and FBI agent Barnes fight to reunite the young boy with his mother, Eileen (Missi Pyle). In a classic bait-and-switch, they lure Barry into a trap and force him to make a deal with Mother that will hopefully ensure Tyler's safe return.

In the season finale, Veronica and Roxie must finally face-off against their old boss, Mother, and her lethal team. Can these assassins also save lives as they try to keep the stolen money out of Barry's hands and get Tyler back into his mother's arms?