Oculama

Mackenzie Mackernally is just your average guy, working through life to achieve that lofty goal of middle management. He likes classic rock, going to the pub and long walks on the beach.

Oh, and he has a telephone that allows him to call himself at any point in his own life. Could this be used to change the course of history on a universal scale? Probably. Will Mackenzie do it? Probably not. He just wants to do his job, ya know?