War Child is a story about Grendel Prime, a cyborg created and trained by the Grendel Kahn, Orion Assante. Grendel Prime's purpose is to protect Assante's sole heir in the event of his death. Prime must protect 10 year old Jupiter Assante from zombies, mutants, rednecks, bikers, vampires, and worst of all his step-mother Laurel Kennedy Assante.
The War Child series was intended by Wagner to continue the Comico series Grendel as issues 41-51, chronicling the rise of Jupiter Assante. Comico shutting down ended the series, which would eventually be published by Dark Horse in this volume.
Collected in Grendel: Warchild.