To the folks of Conway, Duncan Mayor is a very cranky guy. To his wife Suzy, he's a doting pussycat. But Suzy is ailing and is being cared for by Nurse Natalie, whom Duncan tries his best to ignore. Duncan decides the best medicine for Suzy, and a Christmas present she'll never forget, is a ride on a Ferris wheel, set up in their own backyard.

In this, the second installment of this four-part movie saga, the racers face new challenges including a huge car-eating 'Sweeper,' a new weapon developed by the Racing Drones, and the mysterious fourth team, the Silencerz.