Jon and the team head way off the beaten path to Harmony Township, NJ to take on one of their biggest (and potentially most profitable) projects yet: a 3800 square foot mansion in the middle of the woods. And while they think the size and location of this house is going to be their biggest challenge, they have no idea what awaits them as they come face to face with a non functioning propane heating system that could upend the entire 24 Hour Flip machine. Will they fix the heating system in time or will Michelle be forced to hold an open house in 20 degree weather?