The only thing that stays the same is that everything must change. Jayn Galt and her friends and mentors are faced not only with the dramatic social and economic changes the development of their JaynJet rockets have caused, but now must deal with political challenges when JaynJets are modified to replace every source of motive power previously dominated by internal combustion, and the fossil fuel conglomerates dependent on that revenue. New antagonists ally with old enemies and once again Wayne must assume the role of hero to thwart the largest criminal enterprise in history while Jayn struggles to build JaynJet Interplanetary into an ethical and profitable company while instigating a long overdue alteration of the 20th century International Relations paradigm. And Jayn learns to dance.