This episode begins with Donnie, he has been placed in jail. Donnie has a confrontation in jail. Cosima and Sarah are videocalling with MK. Alison visits Donnie in jail. Donnie discovered that a Neolutionist is in jail to keep a eye on him. Siobhan locked Duko into a trap. Siobhan shot Duko to death with a sniper. Nice Episode of Orphan Black Season 4, this was a great episode once again. Excited for the next final episodes!