1
The 12 celebrities land on "Mars."
2
Just as they were settling into life on the red planet, the remaining celebrities must figure out how to replenish their water supply.
3
The 10 remaining contestants brave the elements of the Martian desert when a fire breaks out.
4
The contestants are sent on a mission which tests their perseverance; two are eliminated.
5
Four new crew members land on Mars, but their supply craft goes off course and crashes.
6
The celebs must work together to plug holes in the walls of the hab caused by meteors.
7
A virus takes over the artificial intelligence system and two celebronauts are stuck outside.
8
The nine remaining celebronauts need to repair solar panels damaged by a series of solar flares.
9
The remaining celebronauts discover they are not alone on Mars.
10
The seven remaining celebronauts must find the hab's missing house pet, Raddog.
11
The hab detects a weak distress signal that the crew must investigate immediately.
12
The crewmates must assemble a satellite tower and broadcast a personalized message to Earth.