him, stating that his immature act (in revenge for the government's role in his father's suicide) cost him imprisonment and a new identity to hide his past from his children, which he regrets. Michael appears to let the matter drop. However, Brooke later spots Oliver swapping cars and exchanging metal boxes with strangers. From a payphone, she leaves Michael a message lending validity to his suspicions, but is discovered by Cheryl. Michael learns of Brooke's (off-screen) death, presented as a car accident, on the news. After discovering that messages had been erased from his answering machine, Michael asks Whit to check FBI records about Oliver and recent calls to his home. He also visits the father of the late Dean Scobee, accused of blowing up a federal building 14 months earlier in St. Louis, from where the Langs had moved. The elder Scobee is certain Dean was innocent given the numerous infant victims. Michael sees Dean in a Discoverers group photo with Brady, and frantically rushes to retrieve Grant from the camp. Troop leaders tell him that Grant was taken home with Brady, and Michael storms into the Langs' home; Oliver confirms that his group killed Brooke, refuses to reveal Grant's whereabouts, and threatens Grant's life should Michael speak to law enforcement. Whit tells Michael that the FBI discovered nothing suspicious surrounding Oliver/William, and that Michael's missing message came from a payphone. Michael drives to the source of Brooke's call, from where he follows a suspicious delivery vehicle and watches some of Oliver's acquaintances loading metal boxes into it. Michael follows the van and is shocked to see Grant at the window. Oliver intercepts Michael's car and beats him, promising to kill Grant and expounding his group's mission and their current target: the J. Edgar Hoover Building. Michael overpowers Oliver and illegally drives into the FBI headquarters garage pursuing a van that turns out to be empty. When Whit tells him that he is the only unauthorized person there, Michael rushes back to his own car, discovering a bomb in the trunk seconds before it detonates. The blast partially collapses the FBI headquarters, as Oliver watches from a distance. A news montage, portraying Michael as a lonewolf terrorist seeking revenge for Leah's death, shows that the Langs have successfully framed him. Statements from Michael's students (one of whom is a conspirator) support the official story, giving accounts of his paranoia