Last fall, Nick and his friends restarted their grandparents' superhero team, taking down their city's mayor and a conspiracy in the process. With the conspiracy's formula for granting superpowers in the hands of the government, and the conspiracy nearly destroyed, there shouldn't be much to worry about.Now though, the newly reformed Heroes' League has learned that an assassin who specializes in killing supers has been sighted near Grand Lake. Worse, he's been sighted near Nick's girlfriend's family cottage.Between a man who is willing to kill them all, and a formula that might not be as secret as they'd hope, life is about to get complicated.