In Plain Sight (US): Season 4, Episode

4 - :

Despite her protests, Mary is forced to team up with an unapologetic witness (Maury Sterling) to take down an even bigger criminal (D.W. Moffett). Meanwhile, Mary's ex-husband Mark (Bryan Callen) visits Albuquerque and she reluctantly agrees to have dinner with him, after which they have a one-night stand. Marshall decides to move in with Abigail (Rachel Boston) in order to increase their chances of having a good relationship.