Former British Marine Pen Farthing and his colleagues at Nowzad fight to provide much-needed care to animals in Afghanistan. We receive a team update and see one of their toughest cases to date – an adorable stray dog who's lost the use of his back legs.

Chimp expert Estelle Raballand works to find a friend for a solitary chimp named Ponso, but coordinating a meeting between two chimps is more complex than it looks! Learn more about what went on behind the scenes to make this special introduction happen.

Katherine Connor and her children run an elephant sanctuary in their backyard -- and they're about to welcome Sappraiwan, a tusker who's developed behavioral issues that present a big challenge for Katherine and her team.

When Derrick Campana, an animal prosthetics and orthotics expert, met African elephant Jabu in Botswana, it was the biggest challenge he'd ever faced…literally! Learn more about what went into making Jabu's massive brace, and how he's adapted since.

Pepe, a spider monkey who lived on a chain for years, was finally rescued from the circus by Jan Creamer and Tim Phillips. Now, they need to find him a permanent home back in the rainforest.

Young koalas need lots of attention and cuddles when they're rescued. Enter Dr. Ali Bee and her family, who love and care for Australian koalas in need. See what goes into tending to these special babies and learn about the Bee family's rescue efforts.