Big Hero Six, the Return of the Breathtaker!

On Honey Lemon's birthday, Big Hero Six were having a party in one of her favorite restaurants. But during the party, Gogo is someone she hasn't seen in three years, Nicole, aka. The Breathtaker. Gogo's ex-girlfriend who became a deadly assassin. Why is she here, to help, or something else.

Nicole is the assassin known as the Breathtaker, she was Gogo's ex-girlfriend, and on and off again enemy of Big Hero Six, Honey Lemon is Gogo's best friend, and fellow member of Big Hero Six.

In the world of Big Hero Six.

Find out what the Breathtaker wants.