News TV Videos ‘Supernatural’ season finale preview Written by Lena Lamoray on May 20, 2015 Supernatural — “Brother’s Keeper” — Image SN1022B _0213 — Pictured (L-R): Jared Padalecki as Sam and Jensen Ackles as Dean — Photo: Katie Yu/The CW — é 2015 The CW Network, LLC. All Rights Reserved. Tonight at 9/8c on The CW, watch the season 10 finale of Supernatural. Threatening Rowena is getting Sam nowhere fast. Supernatural – Brother’s Keeper Clip Related posts:'Supernatural' previews'Supernatural' preview clipMisha Collins Interview - Castiel is on the hunt for Lucifer when 'Supernatural' premieres Thursday ...