Escape from the Moon

You were part of a crew working on a moon base, but the other crew members were involved in a mysterious accident during an exploration mission, leaving you alone on the base. The mother ship is in a satellite orbit of the moon. You’re completely isolated, alone — when a warning sound rings throughout the base: ”There is not much oxygen left. The cause is unknown. Get out of the moon base quickly. To repeat, there’s not much oxygen left.”