Alien Abyss

S1, E5: The team enlists special equipment in an epic search for two large air force planes that vanished without a trace with dozens of people on board. Despite a massive search, nothing was ever found. Are planes colliding with mysterious UAPs that are now acknowledged as fact by the US Navy? To investigate, the team embarks on one of its most harrowing dives yet, battling extreme depths and currents that threaten to sweep them away.