A familiar face returns to NCIS: Los Angeles next Tuesday.

Hetty summons Operational Psychologist Nate Getz (former series regular Peter Cambor) to be her “pawn” as the rest of the agents sense another evaluation on the horizon. Is that all there is to it?

Meanwhile, a distraught widow is suspicious of the circumstances surrounding her Marine husband’s last battle and Sam and Callen must attempt to determine if there has been any cover-up.

Check out the promo for "Paper Soldiers" below:

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.