Plas had been deferred from civil service during the war because Captain Murphey needed him more on the home front. However, President Roosevelt requisitions Plas's services for the FBI, confirmed by a telephone call, which meant Plas would work for the government on counter-espionage.; Jean gets the inventive bug and has an engineer create a dynamite-propelled rocket car, and against the wishes of Roy, she takes it for a test drive, careening all over town. In the end, Jean swears to give up inventing things again.; An Easter egg hunt on the grounds of Senator Knight's home. But Sandra smells a rat when one of the eggs collected ticks, while another is very heavy. Don deduces the first to be a bomb and the others loaded with explosives.......a plot to kill Senator Knight.