Michael: Tuesdays and Thursdays (2011)

S1E14 In the Wake of Mary Celeste

A hundred years back, the cargo vessel Mary Celeste disappeared under enigmatic conditions. During an expedition to locate its wreck, Dr. Quest stumbles upon what appear to be crop circles at the seafloor of the Sargasso Sea, alongside a shipwreck graveyard in a region devoid of any marine life.