This is part 3, a continuation to the ReFuel scenarios.
After the unplanned flight to the Moon to get the ReFuel CEO to a Lunar press conference, Refuel Logistics wants you to return the following day with a shipment of Helium-3 and return it to the ReFuel HQ on Earth.
Required addons: ReFuel Lunar Base, ReFuel Corporate HQ, Dan's Delta Glider IV, and 'DGIV Genric Cargo Pack' from orbiter.dansteph.com