56 - Patron Burns Less (S4, Ep 11)
We watch "Turn Left" (Series 4, Episode 11) where Donna goes on a Capra-esque journey whilst the Doctor wisely sits this one out to get a Brazilian. On said journey, Donna chooses job security over temping which kills the Doctor. Then moon traveling Martha Jones dies. Then crashed Starship Titanic Londoners die. Then millions of over weight Americans die from obesity. (Well, that woulda happened anyways.) Then Rose shows up and Donna dies. And then a Weeping Angel earns her wings.