Charles and Lizzie Peterson love puppies. Their family fosters these young dogs, giving them love and proper care, until they can find the perfect forever home. When their mom sits the family down for a talk, Charles and Lizzie are excited to hear that they'll be fostering Zig and Zag, twin Brittany puppies! Double the puppies should mean double the fun, but the twins are very hyper and need a lot of attention. In order to find this adorable duo their forever home, Lizzie will need all the help she can get to train Zig and Zag.