About Designated Survivor Season 1, Episode 21 : Brace for Impact

Hannah Wells must stop the conspiracy from carrying out a final attack while President Kirkman authorizes a nationwide manhunt for the mastermind behind it all.Season finale. Guest Stars: Rob Morrow, Albert Lapi, Kevin McNally, Mark Deklin, George Tchortov, Reed Diamond, Jake Epstein, Bill Smitrovich, Terry Serpico, Geoff Pierson, Mckenna Grace,