Season Four of Ironside begins as the titular wheelchair-bound detective (played by Raymond Burr) begins receiving anonymous phone calls warning him that a "justice" murder will occur. The only clues seem to point in the direction of a disgruntled ex-cop who was thrown off the force in 1955. Whoever the caller is, Ironside must try to remain one step ahead of him to avoid a disastrous denoument. ~ Hal Erickson, Rovi