Zim finds out that his mission was a lie and also the Tallests had just gave him that mission to get rid of Zim. Zim's lab and Gir had been shut down but Zim tries to find a way to fix it and also his Sir-Unit. He cried so much for his little robot, thinking that one day he will return.
Art (c) Me of course
Invader Zim (c) Jhonen Vasquez