Spit and Polish
Episode: 4x01 | Airdate: Sep 13, 1972
Episodes
Killer
Episode: 4x02 | Airdate: Sep 20, 1972
Surveillance
Episode: 4x03 | Airdate: Sep 27, 1972
Dog Eat Dog
Episode: 4x04 | Airdate: Oct 4, 1972
Bank Rate
Episode: 4x05 | Airdate: Oct 11, 1972
On the Third Day
Episode: 4x06 | Airdate: Oct 18, 1972
The Witness
Episode: 4x07 | Airdate: Oct 25, 1972
Run for Your Money
Episode: 4x08 | Airdate: Nov 1, 1972
New Broom
Episode: 4x09 | Airdate: Nov 8, 1972
Paper Chase
Episode: 4x10 | Airdate: Nov 15, 1972
Welcome to the Club
Episode: 4x11 | Airdate: Nov 22, 1972
Justice
Episode: 4x12 | Airdate: Nov 29, 1972
Conversion
Episode: 4x13 | Airdate: Dec 6, 1972
Needle
Episode: 4x14 | Airdate: Dec 13, 1972
Execution
Episode: 4x15 | Airdate: Dec 20, 1972
Time-Table
Episode: 4x16 | Airdate: Jan 3, 1973
Conspiracy
Episode: 4x17 | Airdate: Jan 10, 1973
Money for Sale
Episode: 4x18 | Airdate: Jan 17, 1973
For Love or Money
Episode: 4x19 | Airdate: Jan 24, 1973
Little Acorns
Episode: 4x20 | Airdate: Jan 31, 1973