The Event is an NBC drama that follows Sean Walker (Jason Ritter) who, when his fiancee disappears, takes on the search to find her and uncovers more than he bargained for. His hunt for the truth begins to expose one of the biggest coverups in American history and taps into long held conspiracies that could change everything. The series first aired in 2010 and only lasts one season long but you can access episodes through the NBC website to experience an action-packed, borderline sci-fi TV show.
https://youtu.be/kIFGXPgX7-A