Explore historic shipwrecks off the coast of California, many of which cause heated conflict between the archaeologists, fighting to preserve the wrecks, and salvagers, looking to profit from them.

Lake Superior is home to the "Witch of November" and some of the worst storms a sailor will ever see. On the night of November 10, 1975, the 29-man crew of the iron-ore carrier Edmund Fitzgerald faced the Witch head on.

On a bleak weekend in 1898, a trio of tempests engulfed New England, sinking hundreds of ships. Only now can the dramatic story of the nearly 200 people trapped aboard the lost passenger steamer SS Portland be told.

Marine experts finally found the Derbyshire scattered on the bottom of the sea.

Divers explore the wreck of The Montana, a "mountainboat" built to carry passengers and freight West that sank on the Missouri River in 1884.

Just off the coast of Northern California sits the wreckage of a clipper that smuggled opium into China during the 1840s. Who built and owned it? And how is there no historical record of the sinking?