After a series of mishaps, Mickey, Minnie and the gang are separated all over the world and must try to get back to Hot Dog Hills by Christmas Eve. A mysterious and jolly stranger shows up to tell them about The Wishing Star, which could be the secret to bringing everybody home in time to celebrate together.
Phineas and Ferb travel across the galaxy to rescue their older sister Candace, who has been abducted by aliens and taken to a utopia in a far-off planet, free of her pesky little brothers.