From the publisher's website:
Legacy of Justice: The Pulp Era, BFG's first creator-owned Superlink release, presents a variety of characters and archetypes for your M&M System game.
The imaginative cast of characters are all rooted in the historical context of the pulp genre. They include heroes, villains, and vigilantes such as The Arachnid, Athena, Boss Khan, Dr. Orphic, Don Patelli, Fury, The Judge, and The Strangler.
The eight included archetypes also evoke the tropes of the pulp era. They include the Peerless Detective, Shadowy Vigilante, Man of Action, Mesmerist, Hardboiled Detective, Two-Fisted Archaeologist, Queen of the Jungle, and the Femme Fatale.
Finally, Legacy of Justice: The Pulp Era includes a brief timeline detailing notable events from 1912 to 1934. A handful of adventure hooks also appear throughout the book, each tied to a particular historical event.