Docket No. 20078. March 13, 1979. Appeal from Superior Court of Riverside County, No. 22010, Richard M. Marsh, Judge. COUNSEL Dunbar Taylor and Douglas R. Taylor for Plaintiffs and Appellants. Hagenbaugh Murphy and Everett Hinchcliffe for Intervener and Appellant. Pickell Brown and Ned A. Kimball for Defendants and Respondents. OPINION TAMURA, Acting P.J. This appeal involves the scope of immunity of an employee under Labor Code section 3601, which makes the right to recover workers' compensation