How a homeless community in the Philippines is ferrying passengers around on 'borrowed' rails.
Commuters using London's Paddington station are being warned there could be further disruption today.
The chaos was caused by damage to 500m of overhead power cables inflicted during a train test run on Tuesday.
Network Rail engineers have been carrying out repairs but one line will remain out of action for electric trains.
Some disruption continued between London and Reading on Thursday.