[s1e20] What Is And What Should Never Be -

Samantha Smith (Mary Winchester) and Adrianne Palicki (Jessica Moore).

, and Sam and Dean are estranged, barely speaking to one another. [S1E20] What Is And What Should Never Be

" What Is and What Should Never Be " is a landmark episode of the series Supernatural , specifically serving as . Directed by series creator Eric Kripke in his directorial debut, it is widely considered one of the show's most emotionally profound chapters. Episode Summary and Sam and Dean are estranged