Jethro is very excited about graduating from the sixth grade, even getting a new watch as a present and a dark green and yellow-checkered suit with a glow in the dark tie. But in order to prevent embarrassment, Mrs. Potts gets help from Drysdale and Diana to get Jethro to miss his sixth grade graduation. Diana and Mrs. Potts turn Jed and Jethro’s watches back 45 minutes. Though Granny figured that the watches everyone is wearing are wrong and checks the time herself by using the sun as a clock. She is right, and she, Elly, and Skipper go to Jethro’s graduation and Skipper takes Jethro’s place in marching. Theodore Switzer, the man Mrs. Potts is trying to hide Jethro from, sees the chimp and is impressed that this creature could even make those grades. He decides to double the money he was planning to donate to the school.