Rescuers discover the shocking cause behind Valentine the sea lion's injuries. Then two sick humpback whales, Delta and Dawn, take a wrong turn and swim a 90 miles inland.

A rare Bryde's whale is rescued from a beach but its size and poor health become major challenges for rescuers. Then hundreds of dolphins strand in thick mud. Rescuers rush to save them before they die.

Researchers and rescuers recount the epic story of C6 the dolphin. He was attacked by four bull sharks and nearly died. During his rehabilitation, researchers learn about the brotherly bond he shared with another dolphin, C7.

After being stuck in a drainpipe next to Kennedy Space Center, it takes a little rocket to free Kilroy the manatee. And penguins traveling too far north into warm waters end up on tourist beaches in Brazil. It's time for a penguin rescue.

Rescuers and researchers attempt to identify and rehabilitate a rare seal found injured on a beach in California. And a pelican caught in fishing line hangs upside down from a tree for 2 days before it's rescued.

A flock of pelicans fly way off course and find themselves in the blazing desert and in big trouble. Then a humpback whale faces certain doom if a fishing net covering its head isn't removed in time.

Flamingos are threatened by a rampaging Jaguar during a critical period of hatching and breeding. Also: an attempt to save hundreds of abandoned flamingo hatchlings.

When Superstorm Sandy batters the East Coast of the U.S., birds are blown thousands of miles off course, and animal shelters are so overwhelmed that rescuers go to extraordinary lengths to save the animals in the eye of the storm.