In Alaska, Noah risks losing a dream property when he volunteers his siblings and himself for a hauling-and-build mission to help an off-grid family in need. On the mountain, Bear invents a new way for him and Raiven to accomplish a tedious bush chore.

The Brown siblings battle boat issues while racing to meet a deadline to see a dream property. In Washington, Bam strives to save the ranch money by learning from a local hay farmer. Bear and Raiven share big news for their future.

The Browns must navigate the treacherous Wrangell Narrows on course for the storied Mosman Island where Bird hopes to begin a new chapter. But with the clock ticking for Noah to find his homestead, stormy seas threaten their journey.