It's the middle of winter and a couple is stranded in massive snowdrifts. They're out of cell phone range, the snowplow isn't coming by anytime soon and to make matters worse, she's pregnant. Smash Lab resorts to extreme engineering to help out the troubled couple. Chuck and Gadget begin working on a jet-powered snowplow while Nathaniel and Deanne devise a hot-air balloon that could pop right out of the car.