Mannix - Season 1 - Eps 20: Another Final Exit (or, The Box)
A missing million leads Mannix out of Intertect as bait for a drug ring.
About Mannix

Title: Mannix
First Air Date: 1967-09-16
Last Air Date: 1975-04-13
Status: Ended
Rating: 6.7/10 (from 52 votes)
Language: EN
Seasons: 8
Total Episodes: 194
Network: CBS
Genres: Action & Adventure, Crime, Mystery, Drama
Production Companies: Desilu Productions, Norway Corporation, Paramount Television
Synopsis
Mannix is an American television detective series that ran from 1967 through 1975 on CBS. Created by Richard Levinson and William Link and developed by executive producer Bruce Geller, the title character, Joe Mannix, is a private investigator. He is played by Mike Connors. Mannix was the last series produced by Desilu Productions.
Cast

Mike Connors
Joe Mannix

Gail Fisher
Peggy Fair