River Monsters

Season 9, Episode 1

Episode Title: Killers From the Abyss

Air Date: 2017-04-23

Overview:

Wade takes on the biggest investigation of his career -- to unravel what happened to over 1,000 passengers of the RMS Laconia, torpedoed in the mid-Atlantic; he travels the globe, battling giant fish, massive sharks and a deep-sea monster.