If somehow humans were stuck on Mars and had to survive 365 days, whats materials would they need? If a spaceship had a fuel leakage on the way to planet (haven't figured out the name yet) and landed on Mars due to lack of fuel, what would they have to have to survive 365 days exactly?
Mars is not hazardous place so a shelter with basic life support system is enough. Solar panels would give them the electricity. There is probably spares for if some of the components were to break. They need then food for a year and some water, because they can recycle but it is not 100%. There is no means of producing food in Mars yet, so it is a must have.
Thus it might be that some of the broken components of life support system need to be improvised if there were no spares. Maintaining that system is the key. If they fail everyone dies when the oxygen runs out and the water cannot be recycled. Life in Mars is fairly stable, if the system works, otherwise it means certain death.
They need food, water and breathable air. If they don't have enough in storage then they need to create or recycle it. If it wasn't a planed mission then it is unlikely they would have the stuff they need to do so just lying around.
The could try growing seeds into crops using human faeces mixed with Mars dust for nutrients, and urine for water, but it would probably fail.
They could use a purifier to convert their pee into drinkable water, but they still need a ton of water because they are losing it to evaporation.