That's what Mark Filkins has always believed. But it seems as if he's also gotten a lot he hasn't asked for, like feeling that he's a slightly faded copy of his twin brother, or his parents' plan that both boys will grow up to be preachers.

When he meets Dr. Colin Hendrick, a Nobel Prize-winning scientist whose research Mark's family disapproves of, Mark realizes that he can -- and should -- make choices for himself. But when Colin reveals a terrible secret, Mark knows the time has come to ask for the most important thing of all...and put his own faith on the line.