FOUR TARGETS. FOUR CLUES. ONE CURE. Xander Whitt is back in a fight for our nation's capital. When the Collective steals a deadly contagion from the NIH, the Spartans must rely on their only lead - the now captured Agent Zero. With Agent Zero behind bars, Xander must solve a series of four riddles, indicating the locations of four targets across Washington, DC to stop the attack and contain the spread. But what Xander learns along the way will change him forever, because nothing is as it seems.