John Mondin

Kevin encounters unexpected holiday surprises, while Tom and Christine run into more trouble on the road.

Bull confronts his past when he returns to his childhood home to assist in the arson defense of a young man whose contentious ties to the town mirror Bull's own.

Reese and Finch become trapped in a hospital which has just become ground zero for a deadly viral outbreak. Also, Samaritan’s newest recruit has second thoughts, and Shaw continues to struggle with reality.

Ellen and Brian agree that they need to take down Duncan to have any chance of escaping, so she sneaks away to see a man who has previously helped her solve problems. However, unbeknownst to her, this man has ties to Duncan. Meanwhile, Archer's accomplice plans to reveal to the Assistant District Attorney information about a murder Archer committed. Recurring guest star Joanne Kelly (Warehouse 13) appears as Vanessa, sister of the First Lady, Mary (recurring guest star Mary Elizabeth Mastrantonio).