4x1 - The Sentinels

September 14, 1971

4x2 - Cricket

September 21, 1971

4x3 - Home Is the Streets

September 28, 1971

4x4 - Survival

October 5, 1971

4x5 - Color of Laughter, Color of Tears

October 12, 1971

Edward Asner as a circus owner determined to open despite sabotage and murder. Otto: Michael Baseleon. Jennifer: Anne Archer. Emilio: Dan Ferrone. Cates: Charles Briggs. Julie: Peggy Lipton. Pete: Michael Cole. Linc: Clarence Williams III. Greer: Tige Andrews.

4x6 - The Medicine Men

October 19, 1971

4x7 - The Sands of Anger

October 26, 1971

4x8 - The Poisoned Mind

November 2, 1971

4x9 - Exit the Closer

November 9, 1971

4x10 - Whatever Happened to Linc Hayes?

November 16, 1971

4x11 - And a Little Child Shall Bleed Them

November 23, 1971

4x12 - The Loser

November 30, 1971

4x13 - Death of a Nobody

December 7, 1971

4x14 - Feet of Clay

December 14, 1971

Linc befriends a deaf-mite who becomes a reluctant hero after saving a guard's life in a warehouse fire.

4x15 - I Am My Brother's Keeper

January 4, 1972

4x16 - Deal with the Devil

January 11, 1972

4x17 - Kill Gently, Sweet Jessie

January 18, 1972

4x18 - Shockwave

January 25, 1972

4x19 - No More Oak Leaves for Ernie Holland

February 1, 1972

4x20 - The Cave

February 8, 1972

4x21 - The Wild Weekend

February 15, 1972

4x22 - The Tangled Web

February 22, 1972

4x23 - Outside Position

February 29, 1972

4x24 - Big George

March 7, 1972