INSPIRATION FOR THE THRILLING AMAZON PRIME SERIES JACK RYAN .
Tom Clancy's Under Fire is the latest breakneck Jack Ryan Jr.
adventure novel from one of Clancy's most successful collaborators: Grant Blackwood.
*** Campus operative Jack Ryan Jr is in Tehran, when he meets an old friend, Seth.
As they part, Seth passes Jack a key, gives him a cryptic message - and vanishes.
Now MI6 and the CIA are after Jack.
They're desperate to find Seth.
Jack tells them he knows nothing - but perhaps he knows enough to find his friend on his own .
In a dangerous foreign country, chased by agents from all sides, unsure who - if anyone - he can trust, Jack has few clues and no space for mistakes.
He's risking everything for Seth.
But whose side is his old friend on? And what if it's not Jack's?.