It's a festive fun-filled Christmas edition of Battle of the ages! A mother who loves to cook, a piano-playing teen, and a grandfather who loves to host a crazy Christmas scavenger hunt compete against a mother who loves to have her shoes stuffed with treats, a fashion-loving teen, and a grandmother who never leaves home without her chocolate in an all-out generational battle of skill and wit to see if they can conquer the Timeline Challenge and win $10,000. It's Battle of the Ages!