Unleashed (S01E16)

As animal rights activists ransack a laboratory, they get more than they bargained for when one of the caged ""animals"" unleashes a ferocious appetite. Leaving grotesquely mutilated dead bodies in its wake, the scientifically engineered beast - with the body of a lion, claws of an eagle, fangs of a viper, skin of a rhinoceros and tail of a serpent - attacks Charlie (series star Kirk Acevedo). With Charlie's life on the line, Walter must come face-to-face with both his past and the beast. (Warner Bros. UK)