Kes begins traveling backwards through time from the moment of her death. With each shift, she comes closer to a solution but she also grows months and years younger at a time.
At Christmastime, the family receives a rambunctious poodle from Mikes mother, and Brian has a case of puppy love for a new girl in town.
Dr. Mike is faced with the prospect of leaving Colorado Springs when Sully is offered a job surveying the new Yellowstone National Park.
Dr. Mike risks her life to battle a deadly diphtheria epidemic that threatens the town and her own family.
