Touch of Grey (S08E15)

In an effort to shed her "plain girl" persona, Emma begins using marijuana. However, after consuming some marijuana brownies and forgetting to take her insulin, Becca falls into a diabetic coma and must be rushed to the hospital. During class, Emma discovers that campus police are conducting room inspections, prompting her to call Kelly to dispose of the brownies. Unfortunately, while leaving Emma's room, Kelly encounters the campus cops, who discover the brownies. As a result, he is expelled from the residence hall but can continue attending classes. Meanwhile, K.C. is revealed to be residing in a group home due to his troubled past in juvie.