Sunday is just another day as far as bookseller Anna Bailey is concerned, little does she realise that Time has been altered and her (ex) boyfriend taken out of existence by her stalker Ed, who just happens to be a time travelling alien from the future. Although life is about to change forever, the day Anna meets the Doctor. With the help of Anna and the Time Passages, the Doctor knows he has to go back in Time and return events to their rightful place...Once he's got over his amnesia and stopped Ed the stalker from stealing his TARDIS! Although Time's running out for the Doctor and Anna, Ed must be stopped and the Time passages closed before something deadly comes through them...Though is it already too late? The first in an eight part story arc to feature David Tennant's Doctor.