Zim is told that he is a defect by his tallest so he secludes himself from everyone, including Dib, even though he misses him, and Dib misses Zim
Zim has been receiving a special package every 6 months. Dib gets curious and finds out what in them. Drugs. The Empire had been supplying every Irken with drugs their whole life cycle. Keeping them feeling like they always do. Zim usually gets a dose of extra antipsychotics in order to decrease his need to destroy ev...