Adam, Bree and Chase go on a mission to save Dr. Evans on Christmas Eve, due to a large volcanic eruption in the frozen tundra. After aiding Dr. Evans in stabilizing several of his machinery, an after shock causes his gamma-sphere to crack. Chase has to use his forcefield to contain the highly dangerous gamma rays. Meanwhile, Principal Perry stays in Davenport's mansion and makes Christmas miserable for Leo. In the end, she makes up for it by making a beautiful dinner for them to enjoy, although she makes Davenport pay for it.