This story opens with John Bradford throwing a graduation party for his son, Jim, who has just earned a degree in engineering. John has planned to make his son a partner in his engineering firm for many years. However, Jim has decided to enter the ministry.

Un ingeniero espera que su hijo le suceda al frente de su empresa, pero el joven decide dedicar su vida a las misiones y marcha a Nueva Guinea. Su novia, que es la secretaria del padre, le espera durante años hasta que él le propone matrimonio. Le sigue a Nueva Guinea, se casan, tienen dos hijos, pero el misionero acaba contrayendo una enfermedad mortal...