Major Tom Fox is despatched to East Berlin to bring home a traitor who defected to escape justice. But it's clear that there's more at stake than an old man wanting to return home to face the music. Powerful forces on both sides of the Iron Curtain stand to lose if the defector is given his day in court. Fox soon finds that in the upside-down world of Cold War Berlin he's operating alone in the enemy's backyard, unsure of who he can trust. And if Fox is going to succeed in his mission, let alone escape with his life, he will need to draw on skills learned during a past he's trying to forget . . .