Trace Memory
 After a mysterious crate containing an alien orb, destined for Torchwood, explodes on the docks at Tiger Bay in 1953, young docker Michael Bellini is sent bouncing randomly through time and space. He ends up in the Hub where all the current members of Torchwood realise they have met him at earlier times in their lives. Meanwhile, 'The Men in Bowler Hats' are following Michael as he jumps unpredictably from era to era...