The Mod Squad
The Sentinels
TV Flash files “The Sentinels” as the first listed hour of season 4 — The Mod Squad (1968–1973) on ABC, season 4, episode 1, aired 1971-09-14, 60 min.
From the desk
How this hour is filed
This leaf is S04E01: listed hour 77 of 124 in the The Mod Squad guide, first listed hour of season 4. It aired 1971-09-14 (60 min). The listed hour before it is “The Price of Love” (S03E24). Next is “Cricket” (S04E02).

Catalog log
Broadcast listing — not a TV Flash recap.
While searching for a pair of murderers, the trio uncovers a link between murder, a stolen car and a threatened epidemic.
Viewer FAQ
Where does The Sentinels sit in the The Mod Squad guide?
S04E01 is listed hour 77 of 124 — first listed hour of season 4, season 4 episode 1.
When did The Mod Squad S04E01 air?
The Sentinels aired 1971-09-14 and is listed at 60 minutes.
Where should I start?
Pete, Linc, and Julie on an undercover youth-case hour is the poster: Cole, Williams, Lipton, social-issue crime with fashion. Capt. Greer is the establishment foil.
In the series
Why this series still plays
One Black, one white, one blonde — three young undercover cops with records, fighting the system from inside Aaron Spelling's youth-crime franchise. Michael Cole, Clarence Williams III, and Peggy Lipton photographed like a poster while late-sixties social issues rode along. Establishment television wearing love beads.
The poster is the form. ABC's *The Mod Squad* (1968–1973) photographs Michael Cole, Clarence Williams III, and Peggy Lipton as one Black, one white, one blonde — three young undercover cops with records, fighting the system from inside Aaron Spelling's youth-crime franchise. Tige Andrews as Capt. Greer. Leather, social issues, parental-generation bosses. Bud Ruskin and Spelling packaged troubled youths recruited to infiltrate youth-crime cases. Five seasons of establishment television wearing love beads. The trio…
Filed against
- Michael Cole as Pete Cochran
Michael Cole’s Pete Cochran photographed The Mod Squad like a poster that could still arrest you — one Black, one white, one blonde, three young undercover cops with records, Aaron Spelling’s late-sixties youth-crime franchise. Social…
- Clarence Williams III as Linc Hayes
Clarence Williams III played Linc Hayes on The Mod Squad — one Black, one white, one blonde, three young undercover cops with records, fighting the system from inside Aaron Spelling's youth-crime franchise. Michael Cole, Peggy Lipton, a…
- Peggy Lipton as Julie Barnes
Peggy Lipton played Julie Barnes on The Mod Squad, Aaron Spelling’s 1960s youth-crime franchise — one Black, one white, one blonde, three young undercover cops with records, fighting the system from inside. Photographed like a poster…
- Tige Andrews as Capt. Adam Greer
Tige Andrews supervised The Mod Squad as Capt. Adam Greer — one Black, one white, one blonde, three young undercover cops with records, fighting the system from inside Aaron Spelling's youth-crime franchise. Late-sixties social issues…