The Flight of Oscar is the story of a mouse who wears plaid shirts, which he makes himself, and has a fascination with flying. Well, he can't fly but he really wants to. One day, after watching and studying the birds in flight (which he did a lot), he makes a plan that he hopes will get him up in the air. During his trials, he makes a new friend who understands his passion and may be able to help Oscar realize his dream.