Season 4
| # | Image | Title | Aired |
|---|---|---|---|
| 1 |  | The Beginning of the End | Jan 31, 2008 |
| 2 |  | Confirmed Dead | Feb 7, 2008 |
| 3 |  | The Economist | Feb 14, 2008 |
| 4 |  | Eggtown | Feb 21, 2008 |
| 5 |  | The Constant | Feb 28, 2008 |
| 6 |  | The Other Woman | Mar 6, 2008 |
| 7 |  | Ji Yeon | Mar 13, 2008 |
| 8 |  | Meet Kevin Johnson | Mar 20, 2008 |
| 9 |  | The Shape of Things to Come | Apr 24, 2008 |
| 10 |  | Something Nice Back Home | May 1, 2008 |
| 11 |  | Cabin Fever | May 8, 2008 |
| 12 |  | There's No Place Like Home (1) | May 15, 2008 |
| 13 |  | There's No Place Like Home (2) | May 29, 2008 |
| 14 |  | There's No Place Like Home (3) | May 29, 2008 |