Air date: 2010-06-21

Runtime: 60 min

Was this magnetic boot designed to allow walking in space? Could a three-inch square of metallic material be part of America's first satellite program? Did the Apollo 12 space mission smuggle Andy Warhol's artwork to the moon?

Air date: 2010-06-28

Runtime: 60 min

Iwo Jima Map - What role did this map play in one of WWII’s fiercest battles? Copperhead Cane - How did this cane inspire a fiery political movement that threatened Lincoln’s presidency? Theremin - How did this strange instrument help spark a rock n’ roll revolution?

Air date: 2010-07-05

Runtime: 60 min

A collector who may possess part of the first talking movie; a Cape Cod beachcomber's discovery of what may be a section of the first transatlantic cable. Also: the story behind sketches of five- and eight-pound gold nuggets.

Air date: 2010-07-12

Runtime: 60 min

Sculpture piece may be part of one that featured Andrew Jackson; Clara Barton letter; a notebook may have belonged to a World War I spy.

Air date: 2010-07-19

Runtime: 60 min

Cromwell Dixon: A four-inch square of fabric tells the story of one of America's first barnstorming pilots. Bartlett Sketchbook: Does this sketchbook illustrate scenes from the first ever US-Mexican border survey? Duke Ellington Plates (R): Could this dumpster find be the printing plates for Duke Ellington's hit "Take the A Train"?

Air date: 2010-07-26

Runtime: 60 min

Korean War Letter: What does this letter reveal about a forgotten act of heroism during the final days of the Korean War? Diana: How did this alleged lesbian autobiography escape censorship in the 1930’s? Lookout Mountain Painting: What can this painting tell us about a turning point in the Civil War?

Air date: 2010-08-09

Runtime: 60 min

St.Valentine's Day Massacre: Family lore says their shotgun played a role in the Chicago St. Valentine's Day Massacre. G. Washington Miniature: Why is this miniature of Washington more than a piece of art? Stalag 17 Portrait: A portrait sketched in a WWII prison leads to a meeting 65 years later.

Air date: 2010-08-16

Runtime: 60 min

Hot Town Poster: What role did this striking poster play in the explosive events of 1960s America? Face Jug: Did the artist mean to scare someone with the grimace on this face jug? Lost City of Gold: What does the inscription on a rock tell us about when Spain first arrived in America?

Air date: 2010-08-23

Runtime: 60 min

JACKIE ROBINSON SCORECARD What does this scorecard reveal about the desegregation of our national pastime? MODOC BASKET What tales does this basket weave of the heroism of an American-Indian woman? SPECIAL AGENT FIVE How did this tale of robbery and murder help FBI director J. Edgar Hoover consolidate his power?

Air date: 2010-08-30

Runtime: 60 min

WB Cartoons:This box of cartoon drawings and cels tells an unexpected story about animation's early days. Galvez Papers: Why did a regional governor care enough about a slave to sign her emancipation papers? Mussolini's Dagger: Did this dagger once belong to Benito Mussolini?

Air date: 2010-09-06

Runtime: 60 min

Chicago Clock: How could one clock regulate time for an entire region, and is this it? Universal Friends: A document seems connected to an early controversial religion, the first founded by an American-born woman. War Dogs: What went wrong during a WWII dog-training program on Cat Island?