Perhaps Billy and Maria are star crossed lovers who are going to battle the freezing temperatures in the snow capped hills of northern Italy.
Maybe Billy was an American G.I. stationed in the Italian city of Forli. Billy met Maria as she walked with her goat to the well.
Billy fell in love with Maria as soon as he saw her olive skin and her pouting lips as she gracefully walked with a bucket of water in each hand and one balanced on her head.
Maybe their love was forbidden. Maybe she was too young for him. Maybe her parents wanted her to marry an Italian man. Maybe the goat disapproved. Maybe she was married and they had to run from her husband. Maybe it doesn't get very cold in northern Italy and so my whole story is flawed.
Their supplies are: cowboy boots, one glove, a weather radio, water, bandages, a hat with a cowboy spur on top of it (perhaps it fell off one of the boots) and a box marked supplies.
I'll bet you any amount of money that "supplies" means "coconut rum."