Retroactive continuity, or retcon, is a literary device in which established facts in the plot of a fictional work are adjusted by a subsequently published work. These changes can be minor enough to make no noticeable difference or large enough to change everything. What kind of changes will happen by introducing a few characters, like Bruce Wayne's adopted sons? Non-Powered AU.

ODST Captain Nathanial Renkov unintentionally becomes the first Helljumper to survive being dropped through a Slipspace anomaly. The problem? He has no idea where is and is surrounded by aliens the UNSC has no record of. Even worse? No one knows what the UNSC is. Follow his story as he tries to make sense of his new surroundings while trying to survive a new galactic threat.