In order to rescue a homestead at risk of igniting the next big wildfire, the Raneys must overhaul Kevin Tubbs' faulty electrical system and build the first hydro-electric wheel on the Little Susitna River to make the homestead safe for his children.
To save a single mom and her daughter from rampaging moose and secure a source of food, Marty builds a bridge across a murky creek to access more property, Matt teaches predator deterrent techniques, and Misty builds a snow-proof greenhouse.
After a devastating earthquake, Marty saves the Hartleys' log cabin from crumbling to the ground, while Misty replaces a collapsed greenhouse and Matt constructs a brand new building for the family to start a diesel engine repair shop.
The Raneys continue rescuing the Broadhead's tire bale homestead in Central Ohio. The clock is ticking in part two of this rescue as Marty, Misty and Matt work to provide fresh water, strengthen walls and jumpstart an indoor garden.
The Raneys help an Oregon couple with a toxic salt water well, making it impossible to maintain a food source or livestock. Marty needs clay to build a massive catchment pond and Matt must build a large scale solar still to de-contaminate the water.
The Raneys answer an SOS from a family displaced by their failing homestead. Marty must move a cabin onto a flood-proof foundation, Matt teaches an ill mother how to face her fear of invasive hogs and Misty crafts a rice patty garden in a flood zone.