Marlin, Jim and Stan journey to Kruger National Park in South Africa to go after one of the most difficult to capture of all the world's wild animals, the hippo.

Marlin and Stan are invited to help capture one of the most feared animals on four legs -- a livestock marauding grizzly. They plan to use the only capture method suited to the animal and the country, roping the fierce and powerful bear.

Far out in the Pacific Ocean lies a tiny island. Once every year, these barren rocks explode with life as Steller sea lions come ashore by the thousands to breed and give birth to their young. Marlin sails to the island to join a team of scientists to observe and take part in a tagging project.

In the chill, glacier-fed streams of Alaska sockeye salmon are born, and follow the current to the sea. After two or three great annual circuits of the North Pacific, the call comes to return.

Marlin and Stan journey to Guyana, South America in search of one of the world's rarest wild animals, the giant armadillo.

To study their habits, Marlin Perkins lives with a herd of elephants.

Marlin visits the Dobbieburn Ranch to find out if the techniques of cattle ranching can be used to domesticate the wild animals of Africa.

Marlin and Jim take to the air in a helicopter for two thrilling hunts over Canada...one in search of a giant moose and then in the mountains of western Canada for a mountain goat roundup.

Probably the greatest of the great cats is the king of beasts, the African lion. Roaming the open savannas, its roar is a threat to all who live within its range. Its amazing physical abilities make it the most feared hunter on the African continent.

In the courgar's northernmost range, the Rock Mountains of British Columbia, a mother courgar roams with her yearling cub; until the new litter comes along. Then she must savagely chase the year old cub away.

In a small Wisconsin lake, two otters are born. We follow the appealing animals through the first year of their lives.