Archer Season 4 Episode 1 Fugue and Riffs Episode Title:Fugue and Riffs.Episode Description:Archer has amnesia, brought about by the trauma of watching his mother get married, and believes he is now a fry cook at a burger joint called Bob's Burgers (a role also played in that animated series by H. Jon Benjamin). When he inexplicably stops a KGB attempt on his life, he flees to a spa, where ISIS tries to bring back his memories.