An out-of-this-world new unscripted series, in which household names trade in their possessions, status and glamourous lifestyles on Earth for an insane and hilarious summer on "Mars". Their mission? To be suited up with no space to go, as they colonize, compete and conquer their new galaxy surroundings, until there is just one "celebronaut" left standing.

William Shatner, Lance Armstrong, Natasha Leggero, Marshawn Lynch, Christopher Mintz-Plasse, Adam Rippon, Ronda Rousey, Tom Schwartz, Richard Sherman, Tinashe, Porsha Williams Guobadia, Tallulah Willis, Ariel Winter