Alien Holidays tells the grand adventure of Xiam on our beloved but not easy planet Earth. Very different from his planet, hyper-technological but with no form of lifeblood, the Earth looks like a dream for Xiam! And here he will find a passion for nature , friendship, but not with his fellow men, but with Sheriff Arturo But ambitions and friendship are not the only things Xiam will find, but the love for a sweet Ninetta with whom he will face and challenge an evil and ingenious Ted Must.

Gaetanos the destroyer of worlds and his army are willing to do anything to obtain the stone of power and become the undisputed rulers of the universe. The situation is critical and everything seems lost, the world superpowers don't know how to react and are asking for help from the only people who are able to reverse this situation: the Italians. Misfits, criminals, witches and cockroach men take up the call to arms and take to the field to do what we've always done best: solve problems with style.