Jason Todd's journey has taken him all over the world in search of those who can help him train for his revenge on Batman. But something has begun to change inside him, and the blood and destruction he leaves in his wake is becoming far too risky. Now, he finds himself in London, learning at the feet of an expert bomber. But when Jason learns that the pyrotechnic genius is planning "something big" for the city, it may be something Jason's better nature won't tolerate...