Lisa wants to surprise Oliver with a new tractor for his birthday. To keep it out of sight, she has it delivered to the Ziffels' farm. The old couple mistakes it as a gift from Mrs. Douglas, leading Doris to think that Fred and Lisa are having a torrid affair.

Lisa belives that Oliver's beginning to crack under the pressure of running the farm. After Oliver claims to have seen a spotted horse and a zebra, she calls Doc Watson to give him a checkup. Lisa's attempt to slip Oliver a sedative backfires, resulting in her taking a very long nap.