Sam and Dean travel to , to investigate a series of ritualistic murders where male victims have their hands and feet severed and an ancient Greek symbol carved into their chests.
While Sam researches the symbol at a university, Dean goes to a local bar and meets . The two have a one-night stand, but Dean soon discovers that Lydia is an Amazon , a member of a tribe of warrior women who reproduce with human men. Key Plot Points [S7E13] The Slice Girls
" The Slice Girls " is the of Supernatural . It is notable for introducing Emma , Dean Winchester's biological daughter. Episode Summary Sam and Dean travel to , to investigate