In the final episode of the season, Darran Leal catches up with an old friend in the USA. Dr Russell Brown is a Creative Director at Adobe and he takes us though his workflow, which is entirely mobile. Saul Frank of Camera Electronic takes us to a racetrack to give us some tips on shooting fast action motorsports. Darran concludes his adventures in Argentina with a Tango and Hummingbird shoot. And Peter Eastway gives us some tips for shooting by the moonlight and shows us how to process the images in Lightroom.