When Mark (Don Mitchell) is shot by an unknown assailant, it is first assumed that the bullet was intended for Ironside (Raymond Burr). When a second shooting proves that Mark was the intended target all along, Ironside tries to figure out who could possibly hate his assistant enough to kill him. The plot thickens when the hired thug who pulled the trigger turns up dead. Now Ironside must hide the fact that Mark himself survived the attack in order to flush out the brains behind the assassination attempt. Richard Benedict, who directed this episode, appears in the role of "Sock". ~ Hal Erickson, Rovi