An Alaska family's homestead grinds to a halt, facing an invasion of brown bears displaced by recent wildfires. The Raneys help them build the first-ever "homestead fortress" to safeguard their livelihood amidst the apex predators.

Marty Raney returns to the island of Kauai to find the Nashes five-acre homestead again in peril. While Marty creates a barn for the family's sheep and upgrades their bee-keeping operation, a surprise guest helps them revive their overgrown garden.