37406 attacks the climb from Treviscoe with a return charter train bound for Plymouth, steam loco 45407 on the rear had worked the train up the branch on the outward leg.
Having reversed out of Tavistock Jn Yard (visible in the background) 37410 heads for Plymouth station with empty stock to form a charter to Bere Alston. Steam loco 45407 is on the rear.