The family bands together on a massive mission to rescue a tractor, but Otto faces pressure to get it going before the ice road melts; Otto puts his safety on the line when the family pitches in to build tracks across the frozen river.

Otto and Eivin race to get the barge ready for its most ambitious mission yet- moving wild buffalo; Jane and Charlotte are put to the test as they lead the Kilchers' first ever all female cattle drive; Atz Sr. and Atz Lee protect a homestead relic.