From publisher blurb:
Round Two! The Algernon Files series continues, bringing you more threats and allies (and sometimes characters that can be both) to complicate the lives of Mutants & Masterminds player characters.
Run in terror before the power of The Assembly or unravel the many schemes of Baron Brimstone. Stop the soul-ending depredations of The Bargainer or fight alongside Blackheart to stop the likes of Bad Penny and Battalion.
The Algernon Files 3.0 is a series of sourcebooks for Mutants & Masterminds 3rd edition. You’ll revisit classic characters from earlier editions, as well as meet many new heroes and villains as the series continues.