Operation blue dragon

Second in the series, Caesar is back on duty and in Afghanistan for his most daring mission yet When SAS hero Charlie masters his prosthetic legs and proves his superiors wrong when they say his fighting days are over, he returns to SAS service--and gives Caesar the super-sniffing Explosive Detection Dog back to Ben, his trainer. On their first mission after they're reunited, Caesar and Ben discover a bomb at the Sydney Opera House, targeted at the visiting Secretary General of the United Nations. A little later, the Secretary General's helicopter goes down while touring Afghanistan, and he…