Jethro heads down to the Reserves HQ while wearing an ancestor's Confederate Army uniform. The Sergeant thinks he's an actor there to participate in a Civil War reenactment. Jethro runs home to tell Granny the Civil War is still on.

Col. Blake asks the actor playing Gen. Grant to play along with Granny so that the Civil War movie can continue. Meanwhile, Jethro uses his 6th grade education to take the written test to enter the Reserves.