The Raneys turn the cameras on themselves as they shelter on their Alaskan homestead. Marty tracks the predators of a moose kill found near their cabin.
The Raneys are faced with the daunting task of overhauling a faulty electrical system and building the first hydro-electric wheel on the Little Susitna River.
With just three days to preserve the legacy of a fourth-generation Alaskan homesteading family, the Raneys must fix an earthquake-ravaged foundation.
The Raneys have travelled all over America saving homesteaders on the verge of failing. They reflect and get updates from some of the self-sufficient owners.
The intense winter has frozen the water supply on the homestead, forcing Marty to hunt for a new water source. In Hawaii, Matt and Katie are harvesting cacao.
The Raneys attempt to save a single mother and her daughter from a rampant moose, Marty builds a bridge across a creek and Matt teaches predator deterrent techniques.
The Raneys pass on essential skills to the next generation. And, they check in via video with homesteaders who built a house with 30,000 rubber tyres.
After a devastating earthquake, Marty saves a log cabin from crumbling to the ground while Misty replaces a collapsed greenhouse and Matt constructs a new building.
The Raneys help a family struggling to survive in their home made of 30,000 tire bales. They are battling intruding pests, flooding, and unstable walls.
In Alaska, Marty rescues his property from a deluge of snow runoff. In Hawaii, Matt builds a human-sized slingshot to bring down invasive trees.
The Raneys continue rescuing a tire bale home in Ohio. The clock is ticking as they work to provide fresh water, strengthen walls, and jumpstart an indoor garden.
Marty embarks on a dangerous self-shot mission to carve a road up 300-ft cliffs. And, Misty enlists her family to build a predator-proof coop for the chickens.
Spring arrives and the family self-shoots preparation for the epic expansion of their homestead. Misty plots a huge greenhouse to feed three generations.
The Raneys help an Oregon couple with a toxic salt water well. Marty builds a massive catchment pond and Matt works on a solar still to de-contaminate the water.
Marty must move a failing cabin onto a flood-proof foundation while Matt teaches an ill mother how to face her fear of invasive hogs.
The Raneys tackle a treehouse cabin on the verge of collapse in Missouri. Misty constructs a greenhouse out of scavenged windows, and Matt builds a workshop.
In Northern California, the Raneys give a masterclass on rebuilding from scratch when they help a family whose homestead was destroyed in a devastating wildfire.
A family in Idaho suffers from a cabin on the verge of collapse and predator threat to 100 chickens. The Raneys set about making it liveable.
A daughter pleads for help from the Raneys to rescue her mother and stepfather whose failing homestead in Arizona faces deadly monsoon floods and a menacing cougar.
In the Smoky Mountains, the Raneys visit a homestead on the brink of collapse. They race to establish a viable homestead before the next big storm.
The Raneys put their ingenuity to the test on a homestead in Hawaii that was destroyed by lava. They need to find a way of protecting it from future eruptions.