US Navy pilot LT. Ryan Graves goes on the record with his firsthand account of a UFO sighting while flying training missions over the Atlantic ocean in this clip from Season 1, "UFO Fleet." #Unidentified Subscribe for more HISTORY: po.st/SubscribeToHistory Check out exclusive HISTORY content: History Newsletter: po.st/HistoryNewsletter Website - po.st/HistoryWeb Facebook - po.st/HistoryFacebook Twitter - po.st/HistoryTwitter HISTORY® is the leading destination for award-winning original series and specials that connect viewers with history in an informative, immersive, and entertaining manner across all platforms. The network’s all-original programming slate features a roster of hit series, premium documentaries, and scripted event programming..