Overview: Sam, Eric and A.J. form their own rock band and use the caboose for their headquarters. Soon, a blizzard hits and A.J. gets saddled with her mother's dog, whom she puts outside in the snow -- and forgets about. Zoe decides to deliver some aromatherapy stuff to a friend, and Johnny, worried about the kids' safety, and decides to accompany her on the hazardous trek.