From Introduction:
Blood and Vigilance provides everything you need to bring the four color BAM and POW of comics to your Modern d20 adventures.
Super Hero Origins
Blood and Vigilance introduces Origins (the source of a superhero's power) into Modern d20 with Advanced Training, Alien, Artificial Life, Cybernetic Enhancement, Freak Accident, Jinx, Mutant, and Scientific Experiment
Super Hero Classes
Although all the classes in Modern d20 are usable, Blood and Vigilance adds new classes appropriate to the super hero genre including Acrobat, Brick, Energy projector, Gangster, Mastermind, Mentor, Psychic, and Speed Demon.
Super Powers!
Blood and Vigilance also introduces a unique power system to allow your characters to be more than human and a disadvantage system to bring them back down to Earth.
Gamemastering
A comprehensive chapter for the Vigilance Game Master, including four different sub-genres (Gritty, Street Level, Four Color, Cosmic) and five campaign models, each with pregenerated NPCs and adventure hooks. New campaign models include: The Countdown Killer (Gritty), Dark Future (Street Level), Mutant High (Four Color), Ultimatum (Four Color), and the Host of Scion (Cosmic).
So whether you dream of gritty, street-level adventures in shades of gray, or four color epics that span time and space, Blood and Vigilance is for you.