Clearly, it was in the back of Matt Damon's mind.

"I guarantee you that at some point everything is going to go south on you," he tells his space crew at the beginning of the second trailer for "The Martian."

Boy, does it ever.

As we already know from the first trailer, Damon ends up stranded on Mars, 140 million miles away from Earth, with only 50 days of food and a rescue mission that'll take four years to reach him -- IF he can figure out a way to contact NASA.

The good news is that he's able to phone home. "I'm still alive," he says, looking haggard and wearing what looks like a space bathrobe. "Surprise!"

The bad news: How to grow three years and 10 months of food on a barren and forbidding planet. "So I'm going to have to science the s--- out of this," he decides.

The even more bad news: NASA's not so hot to risk the lives of other astronauts to get him. "It's bigger than one person," grouches NASA honcho Jeff Daniels.

Which means it's time to go interplanetary rogue as rescuers suit up anyway and blast off for what could be a suicide mission.

“The Martian,” which also stars Kate Mara, Kristen Wiig, Jessica Chastain, Michael Pena, Donald Glover and Chiwetel Ejiofor, hits theaters Oct. 2.

The Martian

"Bring Him Home"
PG-132 hr 24 minOct 2nd, 2015