Deep Sea Detectives

A history of the Titanic, which sank in 1912, includes footage of salvage dives.

An exploration of shipwrecks off the coast of California includes an examination of the conflict between preservationists and those who seek to profit from the wrecks.

Shipwrecks off the coast of Cape Cod are explored, including the Sparrow Hawk, which sank in 1626.

Shipwrecks off the coast of Florida are explored, including a 16th-century Spanish galleon and a U.S. Navy schooner.

A chronicle of efforts to recover vital pieces of the USS Monitor, a historic Civil War vessel that sank off the coast of Cape Hatteras, N.C. Included: an examination of the Monitor's role in naval history.

The sinking of a US warship, the USS Indianapolis, is recounted. Chronicled are court-martial and eventual exoneration of its commander, Capt. Charles B. McVay III.

The sinking of a Nazi warship, the Scharnhorst, by the British Navy off the coast of Norway is recalled. Also: exploration of the wreckage.

U.S. sub commanders are profiled. Included: Cdr. Dudley Morton and Cdr. Richard O'Kane.

Faults in torpedo technology are corrected following the attack of Pearl Harbor.

The 1975 sinking of the freighter SS Edmund Fitzgerald in Lake Superior is recalled.

Wreckage of the SS Portland, which went down in 1898 off the coast of Boston, is explored. Included: interviews with the victims' descendants.

The wreckage of the British freighter Derbyshire, which sank in 1980 off the coast of Japan, is explored.

Investigating the wreck of the ferryboat Estonia, which sank in the Baltic Sea in 1994.

Exploring the steamboat Montana, which sank on the Missouri River in 1884.

Exploring the wreckage of the Regina, which sank on Lake Huron in 1913.

The slave ship Henrietta Marie, which sank in 1700 off the coast of Florida, is explored.

The Vrouw Maria, which sank in 1771 off the coast of Finland, is explored.

Exploring the HMT Rohna, a British troopship sunk in 1943 off the coast of Africa by a German bomber.

Included: Bermuda Triangle and the Great Lakes Triangle.

Wreckage of the Frolic, a clipper which sank off the coast of northern California in 1850 is explored.

Search for a Spanish galleon, the Atocha, off the Florida Keys.

The wreckage of a B-29 Superfortress bomber that crashed in Lake Mead in Nevada in 1948 is explored.

The wreckage of a Japanese mini-sub, destroyed at Pearl Harbor a little more than an hour before the December 7, 1941, attack, is explored. The two-man sub, destroyed by the USS Ward, was discovered in August 2002.

Exploring the wreckage of the Andrea Doria, the Italian luxury liner that sank near Nantucket Island in 1956 when it collided with the Swedish-American liner, Stockholm.

The wreckage of the Navy submarine S-5, which sank in 1920 off the coast of Cape May, N.J., is explored.

Wreckage of the German U-boat U-352, which sank off the coast of North Carolina in 1942, is explored.