Invader ZIM (2001)

Episode Overview

Zim's scheme to contaminate Earth's beef supply with sewer water goes awry due to Gir's mischief. Frustrated, Zim cranks up the power on Gir's behavioral modifier to keep him in a serious mindset permanently. However, the newly serious Gir begins to view Zim as a hindrance to their mission and decides to venture off on his own to gather knowledge. Now, Zim and Squidman must track down Gir and dial back his behavioral modifier before their cover is blown and their plan is compromised.