| Release: | Oct 03, 2007 |
| Cover: | Dec 2007 |
321 Days, Conclusion: The Assault
| Release: | Oct 03, 2007 |
| Cover: | Dec 2007 |
As they did years before, Metal Eddie and Liu have played Dick Grayson. Using his DNA, they've gained access to WayneTech and stolen biological research that they intend to sell to the H.I.V.E. But when the Vigilante seriously injures Liu in the fighting, Nightwing is still determined to save her life, allowing Eddie to flee with the research.
| Writer | Marv Wolfman |
| Cover Artist | Ryan Sook |
| Penciller | Jon Bosco |
| Inker | Alex Silva |
| Colorist | Studio F |
| Letterer | Steve Wands |
| Editor | Mike Marts |
| Editor in Chief | Dan DiDio |
| Nightwing | Richard 'Dick' Grayson |
| Vigilante | Dorian Chase |
| Liu | |
| Metal Eddie | Eddie Hwang |
| Age | Modern Age |
|---|---|
| Format | Comic |
| Series Group | Nightwing |
| Genre | Action | Adventure | Crime | Super-Heroes |
| No. of Pages | 32 |
| Country | USA |
| Language | English |