Watch Supernatural My Bloody Valentine Season 5 Episode 15 Online Stream. With the valentine and heart season, every one is hunting cupid just like the latest episode of Supernatural series. The new episode title is the Supernatural My Bloody Valentine Season 5 Episode 15. In this episode, Castiel helps Sam and Dean hunt down Cupid on Valentine's Day after townspeople start to kill each other for love. However, after Cupid tells them he's innocent, they discover Famine, one of the Four Horsemen of the Apocalypse, has arrived in town. The Superntural My Bloody Valentine S05E15 will be out and shown on Thursday, February 11, 2010 9:00 PM-10:00 PM EST on The CW tv. Watch Supernatural My Bloody Valentine Season 5 Episode 15 Online Stream.