Our first south London station, Southfields is on London Underground's District Line - but was for many years operated by British Rail, despite none of their trains ever stopping there. We explore how that came about through classic Victorian railway construction shenanigans; the mainline trains which still use Southfields today; and plans for Crossrail 2 to take over the line.

Tennis fans will know Southfields as the closest station to the Wimbledon grounds, so Emily went on a tour to discover their history. We also look at London's oldest mosque and investigate rumours of a legal clause banning pubs in Southfields.

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A full list of references for all the sources used for the episode is available here