After three years of a massive battle with crime on the streets of Metroburg, the Thunderbolts are suddenly fired from T-Force and sent to their hometown of Hiddenville. Hank and Barb are delighted with the news of returning home, Billy and Nora are looking forward to leading a familiar school lifestyle, and only Max and Phoebe miss the past and dream of fighting evil as superheroes. As the members of the fearsome family adjust to a new chapter in their lives in Hiddenville, mysterious events continue to occur in Metroburg.