Fall in love with baby koala Danny, tiny wallaby Neil, baby sloth Newbie, young kangaroo Harry, and baby fruit bat Bugsy, and with their caring foster mothers, who give so much of themselves to help these little orphans find their way back to the wild.

The eruption of Iceland's Eyjafjallajk̲ull volcano in 2010 turned much of the northern hemisphere into an ash-strewn no-fly zone. Katla, an Icelandic volcano 10 times bigger, has begun to swell and grumble, and Hekla and Laki, could erupt without warning. Iceland is a ticking time bomb: When it blows, the consequences will be global. What can we do to prepare for the coming disaster?

For the men who fought perhaps the fiercest battle of WWII, 70 years have passed. But the memories of those 36 bloody days on Iwo Jima have not. Now, in 2015, men who lost so much make the emotional pilgrimage back to face the defining moment of their lives. There is no other battle in any twentieth century war where former enemies would later come together for a ceremony of remembrance and forgiveness.

"When Mount St. Helens erupted in 1980, every living thing in the blast zone was buried. However, life began to bloom again, and biologist Charlie Crisafulli has been documenting the return of plant and animal life. Also the mountain, like the wildlife, is coming back to life. Nova presents a pioneering look at the interplay between biology and geology that may help scientists predict future volcanic eruptions"--Publisher.

The continuing stories of rookie Constable Morse.

On June 1st, 2009, Flight AF447, an Air France Airbus A330 flying from Rio de Janeiro to Paris, disappeared over the Atlantic Ocean with the loss of all 228 lives. How could a state-of-the-art airliner with elaborate electronic safety and navigation features and a faultless safety record simply vanish without trace? NOVA assembles a team of seasoned pilots, engineers and safety experts to examine the evidence that emerged in the weeks following this...

Leonardo da Vinci is well known for his inventions as well as his art. But new evidence shows that many of his ideas were realized long before he sketched them out in his notebooks, some even 1700 years before him.

First permanent European settlement in the United States was founded two generations before the Pilgrims arrived in 1565. America's Untold Story uncovers the story of America's past that never made it into textbooks.

Duck encourages Shark to dance in his show called 'The Dancing Duck Bonanza.' When Shark comes up on land, he flops all over the stage! Can Duck find a way to put on his show and include Shark? Later, Sheep is getting ready to put on a big musical show! While singing Twinkle, Twinkle, Little Star in front of his friends, Duck gets a case of stage fright. Can Sheep and Ant help Duck overcome his stage fright?

These are hard times in the Quad Cities, a great American crossroads along the border of Iowa and Illinois, where the Mississippi River intersects Interstate 80. It's home to John Deere manufacturing and the nation's breadbasket. But it's also an area deeply scarred by the Recession. FRONTLINE spent months following three young girls who are growing up against the backdrop of their families' struggles against financial ruin.