Louisiana

S3, E2: Bear Grylls faces the deadly swamps in the Deep South of the US that were devastated by Hurricane Katrina, and discovers how easy it is to get lost in the maze of rotten vegetation and stinking water. He gets deep into the murk, home to 2 million alligators, and tries to avoid being attacked. However, he comes face to face with an adult alligator that he kills and eats.