She is a forgotten member of her family – the youngest girl, the smallest, the most disposable – relegated to a life of chores and servitude with no hope for a brighter future. However, when the smallest sliver of opportunity appears, she seizes it with a vengeance to plot a path that will take her to the stars. This episode covers the amazing and improbable life of Caroline Herschel.

One of the wealthiest men in human history set out on a medieval journey whose logistics are nearly too astonishing to be believed. How he used his wealth stands in stark contrast to the havoc wreaked by the uber rich of today. This episode tells the story of Mansa Musa, perhaps the richest man who ever lived.

Vienna of 1840 faces a deadly mystery. Pregnant women are entering its Clinic Number 1 and never leaving, killed in high numbers by deathbed fever. When a prickly doctor doggedly uncovers the reason, he is punished for his theory. And young mothers keep dying. The cautionary tale of Dr. Ignaz Semmelweis.

A poor girl trapped in an abusive marriage, a world-famous entertainer taking Europe by storm, a decorated hero of Nazi resistance, an American civil rights icon – all the same woman. This episode tells the story of the remarkable life of Josephine Baker.

A shadowy figure runs a massive Nazi spy network from the heart of London under the noses of the British during WWII. The catch? The network is a fiction, the work of a self-made spy trying to help the Allies, whether they want him or not. The amazing story of Juan Pujols Garcia.

Fate conspires to destroy an 18th century love story by separating the couple with a nearly impassable gulf. Only an epic historical expedition can reunite them – if they survive. The remarkable tale of Isabel and Jean Godin Des Odainis.

In 1983, one of the greatest underdog stories in modern history unfolded in Australia over the course of five days when a 61-year-old sheep farmer ran a seemingly impossible race. This episode tells the improbable story of Cliff Young.

An all-American girl trapped inside adversarial Japan when WWII erupts, she not only survives but manages to aid her imprisoned countrymen while subtly undermining the enemy. Her reward? A charge of treason levied by her own nation. This episode tells the winding tale of Iva Toguri D’Aquino.