Episode 1: The Nightmare begins

The first episode gives us a introduction about the Irken race and what there plans are. We find out about Operation Impending Doom 2. This plan is to dominate all planets and have all races serving the Irken race. Operation Impending Doom 1 failed as Zim started to destroy his own planet. Zim gets banished but escapes and goes to the assignment of planets to invaders anyway. He is assigned a "secret mission" which is a joke to make him go away.

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With his sidekick Gir they travel for 6 months (Gir sings Doom song non stop!) and arrive at earth (to conquer it!) which was not planned by the tallest they wanted him dead. At earth he disguises himself a human child and Gir is disguised as a dog. In class at skool Zim runs into his nemesis Dib. He knows straight away he is an alien and tries to tell everyone but no one believes him. This starts the great struggle for Dib to prove that there is aliens and he is not crazy. After skool ends Dib goes after Zim to prove that he is and alien by putting him in cuffs and removing disguise. This however fails as when Zim goes home one of his gnomes destroys the cuffs. Zim than tells about how conquering earth is going fine to the tallest they are astonished that he is even alive.

This episode sets the mood for the whole series as it shows humour and action. The characters are loveable as they all are unique and have crazy quirks about them. Such as Gir being a faulty robot what he says and does most of the time is not he is meant to do ( Gir: "I'm gonna sing the doom song now! Doom doom do doom doo doom doom".). The cartoon is stylised and fits the story being told (sometimes very creepy).