If they land safely and IF they get their gear together, they might have a chance to survive.
Building the camp is of course the New Robinson Theme. 4 ppl doing this and hopefully not all are males. I think 2-2 in genders, but with unique skills.
Problem with phones etc, is that Mars will be be blocked by the sun for at least a third of it's cycle, meaning 200 days without connection to your WiFi! At least.
4 ppl going there, probably 3 minute-responses from earth.
If the gear is there, they can survive for a while, but how do they want to expand it?
Robotized stuff is in the making, to grab usefull resources, but will that be enough?