Rebel Agent Tiree is missing. He never made it to the rendezvous point. Alliance command cannot spare the men to launch a full-scale search; Tiree is on his own. But one group of heroes owes Tiree more than they can ever repay - and they vow to find him. Retracing Tiree's trail, the Rebels go to the planet Questal. Tiree was on an unsanctioned mission there, hot on trail of a roumored weapon of fearful proportions. Then he disappeared. Now something is hunting the rebels. Can they avoid Tiree's fate, rescue their friend - and save the Alliance?