The Body Farm (2011)

S1E3 If You Go Down To The Sea Today

Title: If You Venture to the Ocean Today Plot: A trawlerman's corpse washes ashore close to a harbor, prompting DI Hale to investigate. He needs to track down the missing captain of the fishing vessel and a marine biologist who had accompanied the victim on their outing. As he delves into the mystery, Hale uncovers clues that might lead to the truth behind their disappearance.