S1, E2: Andrew and Brian venture out to solve the mystery of the La Concepcion, a shipwreck near the Bahamas where over 300 men were eaten by sharks in 1563. To discover the truth of why the sharks attacked, the two men will attempt to recreate the circumstances of the shipwreck, even going so far as to swim with the sharks at night. Could this swarm have been prevented or could this swarm happen again today?