Yesterday, David Tennant was a highly respected professor with the ear of the President, working on a top-secret government project. Yesterday, he was a man recovering from personal tragedy, just learning to live again. Yesterday, he was falling in love. Project Trinity has the power to change life forever. Only a few hand-picked men and women know the potential of the biggest artificial intelligence study the world has ever seen. Now, one of those men is dead - and Tennant knows Dr Fielding's death wasn't all it seemed. Suddenly, his friend's warnings cannot be dismissed as paranoia. They are the only reason that Tennant is still alive.