In 2854, Section 5 analyst Edward Yeun approaches Tycho Barrett with suspicions of a plot against the life of the Sol Federation Secretary-General. The evidence implicates officials at the highest levels of the North Atlantic States government, potentially igniting an interplanetary war between every world and colony in the Sol system.Tycho and Section 9 must work to prevent the killing, uncover the assassins, and—if necessary—suppress the truth. Their efforts see the return of a man from Tycho’s past and the true extent of The Eleven’s power is laid bare, signaling the beginning of Section 9’s end.