Eddie and Paul go out to the forest looking for a tree to cut down for Christmas, but are attacked by a snowman possessed by a Muckus Demon, a descendant of the Krampus who wants to destroy Christmas. Eddie quickly kills the snowman, but the demon possesses the tree they take home. Meanwhile, Paul and Eddie activate Paul's gift for Christmas: a more advanced, highly intelligent flying robot named Cy, who is discreetly trying to take over Pad's role. The possessed Christmas tree awakens and feeds off electricity to grow in size and strength, then it heads for the city. Pad feels leaves, and Vanoss tries to join the team. They follow the tree to the power plant, where the tree uses the power to grow. Cy betrays the others and leaves. The others realize that the only way they can stop it from absorbing more power, is by disrupting the electricity, meaning that somebody has to sacrifice himself. Pad returns and jumps into the electricity, overloading the tree with too much power and destroying it, sacrificing itself. However, Orb uses her powers and resurrects her. Pad is willing to forgive them if they beat Cy to death, which they happily do. (thetvdb.com)