ENT 3×13 ‘Proving Ground’ Trailer Star Trek Enterprise Season 3 Episode 13 ‘Proving Ground’ Trailer Raw Footage: ENT 3×13 ‘Proving Ground’DateJanuary 5, 2011In relation toعالم الانترنتVOY 3×13 ‘Fair Trade’ TrailerDateNovember 26, 2010In relation toعالم الانترنتTOS 3×13 ‘Elaan of Troyius’ TrailerDateSeptember 26, 2011In relation toعالم الانترنت