150101 heads out of Plymouth with a First Great Western train to Gunnislake on the Tamar Valley. It is passing Devonport Junction where, in years gone by, trains to the Tamar Valley used to diverge left to take the South Western route through Devonport Kings Road. This was closed to passenger trains in the 1960s when they were diverted along the Great Western route through Devonport Albert Road as far as St Budeaux where a connecting line let them back onto the South Western route.