The security of the safe house is failing. The Infiltrators are closing in. As Sam tells Sue how Renwick house was transformed into a secret base, and he and his six companions into secret agents, equipped with the most advanced alien technology, he knows his enemies are closing. Worse, Sue’s attention is drifting, questioning Sam’s grip on reality in order to preserve her own. But when the Infiltrators come, as they must, what can Sam, the sole survivor, do to keep the Changel’s mission alive?