| « Season 3 | Season 4 (Episode Guide) | Season 5 » |
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| Season 4 | (Add Episode) |
| Episode # | Air Date | Title | |
| 25 | 4x01 | 03/Feb/2010 | Suicide is Painless |
| 26 | 4x02 | 10/Feb/2010 | The Black Widows |
| 27 | 4x03 | 10/Mar/2010 | Raffaello Follieri |
| 28 | 4x04 | 10/Mar/2010 | "The Mad Max of Wall Street" |
| 29 | 4x05 | 17/Mar/2010 | Crash and Burn |
| 30 | 4x06 | 24/Mar/2010 | Sholam Weiss |
| 31 | 4x07 | 31/Mar/2010 | Funny Money |
| 32 | 4x08 | 07/Apr/2010 | The Foreclosure Scammer |
| 33 | 4x09 | 14/Apr/2010 | Performance Pills/Kirk Wright |
| 34 | 4x10 | 21/Apr/2010 | Kentucky Fen-Phen Attorneys |
| 35 | 4x11 | 28/Apr/2010 | Dr. Stokes/C&D; Distributors |
| 36 | 4x12 | 05/May/2010 | Computer Hacker Masterminds |
| # | Airdate | Title | Rating |
| S04 - #1 | 23/Jun/2010 | Mob Money | N/A |
| S04 - #2 | 25/Aug/2010 | Madoff Behind Bars | N/A |
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