In Plain Sight (US): Season 4, Episode 1

4 - 1: The Art of the Steal

Mary and Marshall consult with a thief in order to catch another thief in order to clear Brandi's name. Meanwhile, Marshall begins dating a detective (Rachel Boston), Peter's (Joshua Malina) parents (Ken Lerner and Randee Heller) try to force Brandi to sign a pre-nup, and a new WITSEC inspector (Tangie Ambrose) joins the Albuquerque office.