Sarah and Delphine team up to battle the neolutionists, family ties are strained and remade, and our clone hosts try to pick up the pieces after Orphan Black's shocking Season 3 finale. 

Then, Hanna and Emma welcome back the father of modern cloning, Dr. Brian Chair, for a reconciliatitory chat. But when things go south and Dr. Chair reveals the ability to morph into a velociraptor, clone sister/escape artist/friend Blake Pastrydough appears to vomit up some help.