Henry, Jessie, Violet, and Benny have become friends with a famous movie star! While Tate Radison was filming his last movie, a lot of odd things happened. No one knows who was responsible for the canister of film disappearing or for the other problems. Now Tate wants to keep his presence in Greenfield a secret to avoid any more mishaps. But soon a note arrives in his mailbox, and the troubles start again. Why would someone want to ruin Tate's career? It's another mystery for the Boxcar Children!