So there's nothing to do but survive the only way he knows how. SCIENCE!
Damon plays a botanist on the first manned trip to Mars in this adaptation of Andy Weir's dense and detailed book of the same name. It's a Ridley Scott film so you know its going to be very pretty and it's attracted a pretty nice cast, including two folks who previously starred in Interstellar together - Damon and Chastain.
Arguably, it's been a long time since Scott directed anything of worth so maybe this will be a return to form. Or it'll be a surprisingly dull film about an utterly terrifying event.