 At the episode 's conclusion , Jenner purposely calls for the self @-@ destruction of the building , which ultimately explodes shortly thereafter . A plate was installed on set , which hovered over pyrotechnics . The plate was turned upside down to create an optical effect where the flame travels across the panel . This created an illusion that the explosion was expanding . The sequence was divided into six different cuts ; the first one consisted of the rupture glass of the building , while the last frame concluded with the collapse of the Centers for Disease Control and Prevention . 
