Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Series # | Season # | Title | Director | Writer(s) | Airdate |
| --- | --- | --- | --- | --- | --- |
| 439.0 | 1.0 | " The Wreckers " | Robert Totten Category:Articles with hCards | Hal Sitowitz Category:Articles with hCards | September 11, 1967 |
| 440.0 | 2.0 | " Cattle Barons " | Gunnar Hellstrom Category:Articles with hCards | Clyde Ware Category:Articles with hCards | September 18, 1967 |
| 441.0 | 3.0 | " The Prodigal " | Bernard McEveety Category:Articles with hCards | Calvin Clements, Sr. Category:Articles with hCards | September 25, 1967 |
| 442.0 | 4.0 | " Vengeance " – Part 1 | Richard C. Sarafian Category:Articles with hCards | Calvin Clements, Sr. Category:Articles with hCards | October 2, 1967 |
| 443.0 | 5.0 | " Vengeance " – Part 2 | Richard C. Sarafian Category:Articles with hCards | Calvin Clements, Sr. Category:Articles with hCards | October 9, 1967 |
| 444.0 | 6.0 | " A Hat " | Robert Totten Category:Articles with hCards | Ron Bishop Category:Articles with hCards | October 16, 1967 |
| 445.0 | 7.0 | " Hard Luck Henry " | John Rich Category:Articles with hCards | Warren Douglas Category:Articles with hCards | October 23, 1967 |
| 447.0 | 9.0 | " The Pillagers " | Vincent McEveety Category:Articles with hCards | Calvin Clements, Sr. Category:Articles with hCards | November 6, 1967 |
| 448.0 | 10.0 | " Prairie Wolfer " | Robert Butler Category:Articles with hCards | Calvin Clements, Sr. Category:Articles with hCards | November 13, 1967 |
| 450.0 | 12.0 | " Death Train " | Gunnar Hellstrom Category:Articles with hCards | Ken Trevey Category:Articles with hCards | November 27, 1967 |
| 451.0 | 13.0 | " Rope Fever " | David Alexander Category:Articles with hCards | Chris Rellas Category:Articles with hCards | December 4, 1967 |
| 453.0 | 15.0 | " Baker's Dozen " | Irving J. Moore Category:Articles with hCards | Charles Joseph Category:Articles with hCards | December 25, 1967 |
| 454.0 | 16.0 | " The Victim " | Vincent McEveety Category:Articles with hCards | Hal Sitowitz Category:Articles with hCards | January 1, 1968 |
| 455.0 | 17.0 | " Deadman's Law " | John Rich Category:Articles with hCards | Calvin Clements, Jr. Category:Articles with hCards | January 8, 1968 |
| 457.0 | 19.0 | " Blood Money " | Robert Totten Category:Articles with hCards | Hal Sitowitz Category:Articles with hCards | January 22, 1968 |
| 458.0 | 20.0 | " Hill Girl " | Robert Totten Category:Articles with hCards | Calvin Clements, Sr. Category:Articles with hCards | January 29, 1968 |
| 459.0 | 21.0 | " The Gunrunners " | Irving J. Moore Category:Articles with hCards | Hal Sitowitz Category:Articles with hCards | February 5, 1968 |
| 460.0 | 22.0 | " The Jackals " | Alvin Ganzer Category:Articles with hCards | Calvin Clements, Jr. Category:Articles with hCards | February 12, 1968 |
| 461.0 | 23.0 | " The First People " | Robert Totten Category:Articles with hCards | Calvin Clements, Sr. Category:Articles with hCards | February 19, 1968 |
| 462.0 | 24.0 | " Mr. Sam'l " | Gunnar Hellstrom Category:Articles with hCards | Harry Kronman Category:Articles with hCards | February 26, 1968 |
Question:
How many people directed the episode that aired on February 5, 1968?
Answer:
1.0