At a time when critics like Richard Dawkins and Christopher Hitchens are questioning the very legitimacy of faith in God, Tim Keller presents intellectually rigorous reasons why believing in God makes sense. His new book addresses challenges to Christianity such as Jesus' universal claims to be the only way to God, tensions between science and faith, and the authenticity of Biblical texts. Will his arguments hold up under fire? Will they satisfy Columbia skeptics? ABC's Martin Bashir and Columbia's David Eisenbach will push Keller to limits with hard questions of their own, and those that the campus submits.