Two adorable tiger cubs have outgrown their keepers and need to move to the adult exhibit. A silverback gorilla receives pioneering treatment to curb his worsening eyesight. And a passionate keeper plays matchmaker to a peculiar pair of birds.
The Guardians' mission: to help animals where others can't. Founder Rob and investigators Marceline, Bill & Elle hope to unmask a puppy flipper; members Brian & Face look for a dog in a mechanic's hoard; rescuer Dori & vet Moose help animals in need.
Marine Conservation Groups battle outlaw fishing vessels through frigid waters and treacherous territories with efforts to force the end of poaching and a criminal network of fishermen.
Houston welcomes veterinarians Dr. Blue, Dr. Ross and Dr. Lavigne, who have their hands full with everything from risky surgeries to diagnosing sick chameleons. A car accident brings the practice to a halt as one of the doctors faces a long recovery.
Renowned bear handler Jeff Watson says goodbye to his family and friends and sets out on an adventure into the wilderness of Southern Indiana to teach his two 700 lb. grizzly bears Bob and Screech how to survive on their own in the wild.
Paul Watson is captain and founder of Sea Shepherd, a radical environmental group made up of self-proclaimed eco-pirates who fight for marine conservation. Their mission is to stop Japanese fishing vessels from killing whales in Antarctica.
Dr. Dee embarks on her first cross-country flight as a new pilot to treat animals in the Arctic Circle. She also cares for an aging, beloved Border Collie and a disabled Siberian husky with a fighting spirit.
School is in full swing. In just a few months, the students will be doctors, but they must still pass their final rotations. Adding further stress, they're anxiously awaiting match results for next year's internship program.