There is plenty of food in the Pacific Ocean, but it is the challenge of finding that food that drives all life in the Pacific. For all creatures, every mouthful counts. In the voracious Pacific we meet a destructive army of mouths, a killer with a hundred mouths and the biggest mouth in the ocean. Also we have a look on a lush kelp forest at the West Coast of the US, that provides shelter for a plethora of species, but this delicately balanced ecosystem demonstrates how appetites in the Pacific must be kept in check.