Nick is leaving the building when Eliot sees him leaving and chases him. Nick manages to escape when he runs to a North Pole stage where kids meet Santa Claus. He steals the costume for Santa Claus and walks to the bus stop in disguise and goes to his brother's house.
The narrative describes Nick leaving a building, being pursued by Eliot, and ultimately using a disguise to reach his brother's house after stealing Santa's outfit.