The 2005 episode from Series 1 reintroduced the Daleks as villains, and more menacingly than ever. They properly portrayed just one Dalek as a nigh unstoppable death machine.
In the episode, it was explained that the Dalek survived the Time War by falling out of it.. or something. But we now know that Gallifrey atleast was frozen and hidden away, so what were the exact circumstances in which this Dalek escaped death?