Briggs is forced to play along with powerful mobster boss Frank Egan (William Smithers when the daughter of Briggs' friend Joe Mantell is kidnapped. In order to secure the girl's release, Briggs and the IMF must themselves kidnap the key witness against Egan in an upcoming Grand Jury investigation. This pulse-pounding Mission: Impossible episode was a radical--and effective--departure from the series' usual format.