
Paranoid that the Endurance crew won't go along with his plan once they learn what he's done, Mann attempts to kill Cooper so he can make his getaway. At this point, Mann is so desperate to leave that he'll do anything, even commit murder. Although he resisted the urge for years, he eventually falsified his survey data in order to coax another team to travel to his planet, intending to use the Endurance to escape. Although each of the original 12 scientists knew their trip was one-way, Mann admits he never fully considered the possibility that his planet would be uninhabitable, and that he might die alone. Unfortunately, it's soon all revealed to be a ruse. Mann's (Matt Damon) planet, the heroic scientist assures them his icy cold spot is the perfect place for humans to live.

A few years later, the Endurance and its crew - including Cooper (Matthew McConaughey) and Brand (Anne Hathaway) - are going to visit the three most promising planets in the hopes of colonizing one.

As we learn at the beginning of the film, a group of 12 scientists traveled through a mysterious wormhole that appeared near Saturn, to see if the 12 planets on the other side could sustain human life.
