It's Buck Roger's 534th birthday, and Wilma and Dr. Huer plan a surprise party to cheer up the homesick astronaut. Wilma arranges to get Buck "out of the way" by having him accompany Dr. Huer's assistant to New Detroit with the doctor's business schedule. Meanwhile, a man who is plotting revenge against Huer attempts to gain access to the schedule from the assistant so that he can ambush and kill Dr. Huer.