Welcome Back, Kotter 4x20
Season 4 · Episode 20
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Overview
Arnold's relationship with Mary gets serious. Then he finds out he has to move and leave the school. Upset, Arnold decides to propose marriage to Mary. She accepts.
Season 4 · Episode 20
Arnold's relationship with Mary gets serious. Then he finds out he has to move and leave the school. Upset, Arnold decides to propose marriage to Mary. She accepts.
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