| Issue | #4 |
| Published | October 2006 |
| Cover Price | 2.99 USD |
| Pages | 36 |
| Editing | Tom Palmer, Jr. |
| Characters | Doom Patrol [Robotman; Elasti-Girl; Negative Man; Beast Boy; Bumblebee] |
| Genre | Superhero |
| Pencils | Karl Kerschl |
| Inks | Karl Kerschl |
| Colors | Stephane Peru |
| Characters | Secret Six [Deadshot; Catman; Ragdoll; Knockout; Scandal Savage; Mad Hatter]; Doom Patrol [Negative Man; Vox; Robotman; Bumblebee; Elasti-Girl; Mento; Beast Boy]; Vandal Savage; Cheshire; Dr. Psycho |
| Synopsis | The Secret Six encounter the Doom Patrol, who prove no match for the Mad Hatter. Later, back at the House of Secrets, Knockout and Deadshot have an encounter of their own. |
| Genre | Superhero |
| Script | Gail Simone |
| Pencils | Brad Walker |
| Inks | Jimmy Palmiotti |
| Colors | Paul Mounts |
| Letters | Travis Lanham |