Agents And Assassins: Modern-Day Action With The 4C System

from the introduction:

Costumed superheroes with larger than life powers can be a lot of fun, but so can heroes a little lower on the power scale. Agents and Assassins provides rules for role playing secret agent characters (like James Bond and Jack Bauer), pulp-era heroes (like Indiana Jones and H.P. Lovecraft’s investigators), characters with a handful of minor super powers (like Luke Skywalker and Buffy the Vampire Slayer) and vigilantes who get most or all of their abilities from training, not supernatural powers (like the Phantom and the Punisher).

This rules set uses the free 4C System RPG rules with the following changes. Either the Basic or Advanced 4C rules can be used in play.