After a show, the Partridge Family is approached by a talent scout who informs them that Keith would be perfect for a part in a new movie; he wants Keith to take a screen test. Reuben and Shirley coach Keith and the family all act out the characters in the script to help him learn his lines. He will play a baby-faced gangster. A week later, the whole family goes off to Hollywood for the test. A very nervous Keith manages the part well and is notified a few days later that he got the part. Keith is being treated like a great Hollywood star by everyone in town. The family has planned a surprise party for him the night before he leaves to make the movie. That afternoon Reuben tells Keith that World Pictures has decided against starring an unknown, so he has lost the part. When Keith finally brings himself to tell Shirley the news, he is unknowingly walking into the surprise party. When everyone cries for a speech, Keith explains what has happened. The party is a good one despite the bad news and afterwards the family presents Keith with the Partridge Award for the best performance by an actor in an embarrassing situation.