“Callan” (Edward Woodward) was retired from his top secret job after his boss “Hunter” (Eric Porter) thought he’d lost his edge, but now that very man is courting him to return for one very special task. That will involve him killing a man called “Schneider”. If he does this, then he will be reinstated no questions asked. Thing is, though, “Callan” isn’t just an hit man, he wants to know a little ver mais...