Sam find Anson's wife had been blown up. Fiona plants a small explosive to kill Larry. The building explodes from the bottom, killing two security guards inside. It turns out that Anson planted the bomb and framed Fi. He is the co-founder of the organization that burned Michael and threatened to have the CIA and MI6 after Fi if Michael does not do his dirty work. It is revealed that later in his life, Michael's father met Anson and admitted his sorrow that he never got the chance to apologize to his son. Anson used him to gain information on Michael, and when Frank became suspicious, Anson arranged for his death. Eventually, Fiona grows tired of Michael working for Anson and turns herself in to the FBI when Anson tries to get Michael to burn a CIA operations team for him. Michael arrives just as Fiona surrenders. Michael becomes enraged and chases Anson to a chemical plant in the Florida Keys. Anson outwits Michael by rigging the building to explode and attaching the detonator to a dead-man switch. Michael again vows to go after Anson and bring him in dead or alive, despite the support of Agent Pierce and the CIA. By working with Rebecca, Anson's partner, who was also blackmailed by Anson, he tracks Anson down to Atlantic City and goes after him with Jessie, Pearce, and Nate. Michael's life takes a further turn for the worse when Nate is killed during Anson's assassination. As such, Michael, Madeline, Sam, Fiona, and Jesse are all hell-bent on exacting revenge for Nate's murder. Eventually, Michael, with his former mentor Tom Card helping him, tracks Nate's killer, Tyler Gray, to Panama. After Michael successfully captures him, Gray reveals Card was the one who pulled the strings behind Anson's murder, since Card had been working with Anson and Card decided to kill Anson to keep him from talking. The mission to Panama was supposed to be a suicide mission for Michael and his friends. After barely escaping Card's air strike, Michael and the others attempt to get back to Miami, all the while learning that Gray had been lied to by Card about what he was told about Michael. After realizing Michael wasn't the person he was told, Gray agrees to help him take down Card. Returning to Miami, Gray assists Michael in gathering intel on Card, but when Card discovers Gray's betrayal,