Caught in the Act - 4 ª Season

Eyewitnesses share amazing wildlife encounters caught on tape. In New Zealand, two filmmakers witness an act of Octopus cannibalism. Tourists in California are shocked to see Killer Whales viciously attack a Dolphin. Surfers in Mozambique spot a monkey and a dog playfully fighting and teasing each other in a game of tag.

Witness the best that nature has to offer in these rare wildlife moments caught on camera. Tourists are in awe during a trip to South Africa's Kruger Park as they watch an elephant rescue a buffalo from being eaten by a lion. Crocodiles come into dangerous waters when they are up against a group of lions, all fighting for the same carcass. Also watch as an elephant lifts a crocodile out of the water with tremendous effort in order to protect her young calf.

Tigers are the largest feline predators on the entire planet. They will go to great lengths, even kill, in order to gain dominance over other males. That's the scenario that confronts filmmaker John Varty as two of his male tigers, Ron and Seatao, come head to head on his breeding ranch in South Africa. John captures raw footage of the tiger fight before he decides to put his camera down and stop the ferocious fight between the two tigers he has trained since they were cubs.

Relive rare experiences of incredible animal behavior caught on tape by eyewitnesses. A father and son witness a hippopotamus, one of the world's most dangerous and aggressive mammals, risk its life to save a drowning baby zebra. Viewers watch captured footage from safari-goers who share their story of two female lions taking down a giraffe within seconds. And an overly curious dog is wounded by an overprotective deer.