Matt Carlson brings his daughter Shipley to the Port Protection school to experience more of the community. New episodes of Port Protection: Alaska air Tuesdays at 9/8c on National Geographic. | Life Below Zero

Sam Carlson journeys out to a kelp bed to fish for kelp greenling to use as bait in a mink trap. New episodes of Port Protection: Alaska air Tuesdays at 9/8c on National Geographic. | Life Below Zero

Once it gets you, there's no letting go. Don't miss the new season of #PortProtectionAlaska, premiering Tuesday, March 11 at 9/8c on National Geographic TV. Streaming soon on Disney and Hulu. | Life Below Zero

Tim 'Curly' Leach helps his neighbor, Mary Miller cut down some dangerous trees on her property. A new episode of Port Protection: Alaska airs Tuesday at 9/8c on National Geographic. | Life Below Zero

Gary Muehlberger picks up his good friend Litzi for a fishing trip. Litzi shares her experience of braving the challenges of Port Protection for nearly 40 years, with only one arm. | Life Below Zero