CrossFlat - One day in the apocalyptic World

It was hot morning. The wind was flying across the desert. Humanity is nearly extinct because of the unknown disease. Rest of the people are forced to fight for remaining resources. In secluded hangar in the middle of the desert the residents were getting up. They were friends for a long time. They knew each other even before the disease outbreak. When one of them got up, he found out that they don´t have any food left. Most likely some mice ate it. He woke up rest of his friends so they can go on expedition. When all of them were sitting in armored vehicle, they found out that the stairs to the liver, that opens main door, were broken. What now? How to get out of here? Where to find some food? Can you open hangar and get to the nearest town for food?