In The Gray Whale Obstacle Course, Jean-Michel Cousteau and the Ocean Adventures team travel the length of this migration, from the warm waters of Magdalena Bay in Baja California, Mexico, where the gray whales give birth, nurse their calves, rest and play before their long journey north, to the nutrient-rich feeding grounds of the Bering Sea in Alaska. The team searches for clues about this resilient, yet threatened species to gain a better understanding of the increasing challenges, both natural and man-made, that gray whales face along the way.